Home / 641,620,275.86-885,413,071.22-363,155,820.68

Finding the Fourth Proportional to 641,620,275.86, 885,413,071.22 and 363,155,820.68

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Solution

The fourth proportional to 641,620,275.86, 885,413,071.22 and 363,155,820.68 is: 501,142,065.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,620,275.86 : 885,413,071.22 = 363,155,820.68 : x
  2. Step 2: Convert to fraction form
    641,620,275.86/885,413,071.22 = 363,155,820.68/x
  3. Step 3: Cross multiply
    641,620,275.86x = 885,413,071.22 × 363,155,820.68
  4. Step 4: Simplify right side
    641,620,275.86x = 321,542,910,513,455,552
  5. Step 5: Solve for x
    x = 321,542,910,513,455,552/641,620,275.86
  6. Step 6: Final answer
    x = 501,142,065.82

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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.