Home / 77,806,764.78-107,375,805-42,523,796.04

Finding the Fourth Proportional to 77,806,764.78, 107,375,805 and 42,523,796.04

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Solution

The fourth proportional to 77,806,764.78, 107,375,805 and 42,523,796.04 is: 58,684,188.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,806,764.78 : 107,375,805 = 42,523,796.04 : x
  2. Step 2: Convert to fraction form
    77,806,764.78/107,375,805 = 42,523,796.04/x
  3. Step 3: Cross multiply
    77,806,764.78x = 107,375,805 × 42,523,796.04
  4. Step 4: Simplify right side
    77,806,764.78x = 4,566,026,831,450,812
  5. Step 5: Solve for x
    x = 4,566,026,831,450,812/77,806,764.78
  6. Step 6: Final answer
    x = 58,684,188.25

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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.