Home / 77,970,310.60-107,600,296.98-42,687,522.76

Finding the Fourth Proportional to 77,970,310.60, 107,600,296.98 and 42,687,522.76

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Solution

The fourth proportional to 77,970,310.60, 107,600,296.98 and 42,687,522.76 is: 58,909,475.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,970,310.60 : 107,600,296.98 = 42,687,522.76 : x
  2. Step 2: Convert to fraction form
    77,970,310.60/107,600,296.98 = 42,687,522.76/x
  3. Step 3: Cross multiply
    77,970,310.60x = 107,600,296.98 × 42,687,522.76
  4. Step 4: Simplify right side
    77,970,310.60x = 4,593,190,126,316,509
  5. Step 5: Solve for x
    x = 4,593,190,126,316,509/77,970,310.60
  6. Step 6: Final answer
    x = 58,909,475.81

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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.