Home / 77,970,314.60-107,600,302.50-42,687,526.76

Finding the Fourth Proportional to 77,970,314.60, 107,600,302.50 and 42,687,526.76

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Solution

The fourth proportional to 77,970,314.60, 107,600,302.50 and 42,687,526.76 is: 58,909,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,970,314.60 : 107,600,302.50 = 42,687,526.76 : x
  2. Step 2: Convert to fraction form
    77,970,314.60/107,600,302.50 = 42,687,526.76/x
  3. Step 3: Cross multiply
    77,970,314.60x = 107,600,302.50 × 42,687,526.76
  4. Step 4: Simplify right side
    77,970,314.60x = 4,593,190,792,352,845
  5. Step 5: Solve for x
    x = 4,593,190,792,352,845/77,970,314.60
  6. Step 6: Final answer
    x = 58,909,481.33

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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.