Home / 72,483,711.76-100,027,536.42-39,888,663.76

Finding the Fourth Proportional to 72,483,711.76, 100,027,536.42 and 39,888,663.76

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Solution

The fourth proportional to 72,483,711.76, 100,027,536.42 and 39,888,663.76 is: 55,046,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,483,711.76 : 100,027,536.42 = 39,888,663.76 : x
  2. Step 2: Convert to fraction form
    72,483,711.76/100,027,536.42 = 39,888,663.76/x
  3. Step 3: Cross multiply
    72,483,711.76x = 100,027,536.42 × 39,888,663.76
  4. Step 4: Simplify right side
    72,483,711.76x = 3,989,964,766,998,534
  5. Step 5: Solve for x
    x = 3,989,964,766,998,534/72,483,711.76
  6. Step 6: Final answer
    x = 55,046,363.80

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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.