Home / 79,778,813.70-119,668,220.55-66,173,924.10

Finding the Fourth Proportional to 79,778,813.70, 119,668,220.55 and 66,173,924.10

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Solution

The fourth proportional to 79,778,813.70, 119,668,220.55 and 66,173,924.10 is: 99,260,886.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,778,813.70 : 119,668,220.55 = 66,173,924.10 : x
  2. Step 2: Convert to fraction form
    79,778,813.70/119,668,220.55 = 66,173,924.10/x
  3. Step 3: Cross multiply
    79,778,813.70x = 119,668,220.55 × 66,173,924.10
  4. Step 4: Simplify right side
    79,778,813.70x = 7,918,915,743,857,760
  5. Step 5: Solve for x
    x = 7,918,915,743,857,760/79,778,813.70
  6. Step 6: Final answer
    x = 99,260,886.15

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Double scale
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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.