Home / 1,816,150,991.43-2,506,288,353.39-980,775,488.19

Finding the Fourth Proportional to 1,816,150,991.43, 2,506,288,353.39 and 980,775,488.19

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Solution

The fourth proportional to 1,816,150,991.43, 2,506,288,353.39 and 980,775,488.19 is: 1,353,470,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816,150,991.43 : 2,506,288,353.39 = 980,775,488.19 : x
  2. Step 2: Convert to fraction form
    1,816,150,991.43/2,506,288,353.39 = 980,775,488.19/x
  3. Step 3: Cross multiply
    1,816,150,991.43x = 2,506,288,353.39 × 980,775,488.19
  4. Step 4: Simplify right side
    1,816,150,991.43x = 2,458,106,183,340,988,416
  5. Step 5: Solve for x
    x = 2,458,106,183,340,988,416/1,816,150,991.43
  6. Step 6: Final answer
    x = 1,353,470,165.72

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Half scale
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Double scale
Find fourth proportional to 1,816,150,992.43, 2,506,288,354.77 and 980,775,489.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.