Home / 12,781,892.49-17,639,446.90-7,559,377.50

Finding the Fourth Proportional to 12,781,892.49, 17,639,446.90 and 7,559,377.50

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Solution

The fourth proportional to 12,781,892.49, 17,639,446.90 and 7,559,377.50 is: 10,432,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,892.49 : 17,639,446.90 = 7,559,377.50 : x
  2. Step 2: Convert to fraction form
    12,781,892.49/17,639,446.90 = 7,559,377.50/x
  3. Step 3: Cross multiply
    12,781,892.49x = 17,639,446.90 × 7,559,377.50
  4. Step 4: Simplify right side
    12,781,892.49x = 133,343,238,008,304.73
  5. Step 5: Solve for x
    x = 133,343,238,008,304.73/12,781,892.49
  6. Step 6: Final answer
    x = 10,432,198.37

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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.