Home / 77,914,511.70-107,521,969.06-42,632,548.47

Finding the Fourth Proportional to 77,914,511.70, 107,521,969.06 and 42,632,548.47

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Solution

The fourth proportional to 77,914,511.70, 107,521,969.06 and 42,632,548.47 is: 58,832,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,914,511.70 : 107,521,969.06 = 42,632,548.47 : x
  2. Step 2: Convert to fraction form
    77,914,511.70/107,521,969.06 = 42,632,548.47/x
  3. Step 3: Cross multiply
    77,914,511.70x = 107,521,969.06 × 42,632,548.47
  4. Step 4: Simplify right side
    77,914,511.70x = 4,583,935,557,540,290
  5. Step 5: Solve for x
    x = 4,583,935,557,540,290/77,914,511.70
  6. Step 6: Final answer
    x = 58,832,885.65

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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.