Home / 77,526,248.78-106,988,505.44-42,721,181.24

Finding the Fourth Proportional to 77,526,248.78, 106,988,505.44 and 42,721,181.24

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Solution

The fourth proportional to 77,526,248.78, 106,988,505.44 and 42,721,181.24 is: 58,956,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,526,248.78 : 106,988,505.44 = 42,721,181.24 : x
  2. Step 2: Convert to fraction form
    77,526,248.78/106,988,505.44 = 42,721,181.24/x
  3. Step 3: Cross multiply
    77,526,248.78x = 106,988,505.44 × 42,721,181.24
  4. Step 4: Simplify right side
    77,526,248.78x = 4,570,675,331,498,966
  5. Step 5: Solve for x
    x = 4,570,675,331,498,966/77,526,248.78
  6. Step 6: Final answer
    x = 58,956,487.69

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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.