Home / 641,620,275.11-885,413,070.18-363,155,819.93

Finding the Fourth Proportional to 641,620,275.11, 885,413,070.18 and 363,155,819.93

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Solution

The fourth proportional to 641,620,275.11, 885,413,070.18 and 363,155,819.93 is: 501,142,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,620,275.11 : 885,413,070.18 = 363,155,819.93 : x
  2. Step 2: Convert to fraction form
    641,620,275.11/885,413,070.18 = 363,155,819.93/x
  3. Step 3: Cross multiply
    641,620,275.11x = 885,413,070.18 × 363,155,819.93
  4. Step 4: Simplify right side
    641,620,275.11x = 321,542,909,473,529,472
  5. Step 5: Solve for x
    x = 321,542,909,473,529,472/641,620,275.11
  6. Step 6: Final answer
    x = 501,142,064.78

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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.