Home / 77,526,266.31-106,988,529.65-42,721,198.79

Finding the Fourth Proportional to 77,526,266.31, 106,988,529.65 and 42,721,198.79

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Solution

The fourth proportional to 77,526,266.31, 106,988,529.65 and 42,721,198.79 is: 58,956,511.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,526,266.31 : 106,988,529.65 = 42,721,198.79 : x
  2. Step 2: Convert to fraction form
    77,526,266.31/106,988,529.65 = 42,721,198.79/x
  3. Step 3: Cross multiply
    77,526,266.31x = 106,988,529.65 × 42,721,198.79
  4. Step 4: Simplify right side
    77,526,266.31x = 4,570,678,242,678,910
  5. Step 5: Solve for x
    x = 4,570,678,242,678,910/77,526,266.31
  6. Step 6: Final answer
    x = 58,956,511.91

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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.