Home / 786,396,425.65-1,085,253,132.24-429,183,761.29

Finding the Fourth Proportional to 786,396,425.65, 1,085,253,132.24 and 429,183,761.29

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Solution

The fourth proportional to 786,396,425.65, 1,085,253,132.24 and 429,183,761.29 is: 592,287,815.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,396,425.65 : 1,085,253,132.24 = 429,183,761.29 : x
  2. Step 2: Convert to fraction form
    786,396,425.65/1,085,253,132.24 = 429,183,761.29/x
  3. Step 3: Cross multiply
    786,396,425.65x = 1,085,253,132.24 × 429,183,761.29
  4. Step 4: Simplify right side
    786,396,425.65x = 465,773,021,246,516,992
  5. Step 5: Solve for x
    x = 465,773,021,246,516,992/786,396,425.65
  6. Step 6: Final answer
    x = 592,287,815.73

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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.