Home / 1,107,218,140.10-1,660,827,210.15-646,919,375.30

Finding the Fourth Proportional to 1,107,218,140.10, 1,660,827,210.15 and 646,919,375.30

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Solution

The fourth proportional to 1,107,218,140.10, 1,660,827,210.15 and 646,919,375.30 is: 970,379,062.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,218,140.10 : 1,660,827,210.15 = 646,919,375.30 : x
  2. Step 2: Convert to fraction form
    1,107,218,140.10/1,660,827,210.15 = 646,919,375.30/x
  3. Step 3: Cross multiply
    1,107,218,140.10x = 1,660,827,210.15 × 646,919,375.30
  4. Step 4: Simplify right side
    1,107,218,140.10x = 1,074,421,301,271,479,808
  5. Step 5: Solve for x
    x = 1,074,421,301,271,479,808/1,107,218,140.10
  6. Step 6: Final answer
    x = 970,379,062.95

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.