Home / 12,781,889.96-17,639,443.41-7,559,374.97

Finding the Fourth Proportional to 12,781,889.96, 17,639,443.41 and 7,559,374.97

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Solution

The fourth proportional to 12,781,889.96, 17,639,443.41 and 7,559,374.97 is: 10,432,194.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,889.96 : 17,639,443.41 = 7,559,374.97 : x
  2. Step 2: Convert to fraction form
    12,781,889.96/17,639,443.41 = 7,559,374.97/x
  3. Step 3: Cross multiply
    12,781,889.96x = 17,639,443.41 × 7,559,374.97
  4. Step 4: Simplify right side
    12,781,889.96x = 133,343,166,978,592.98
  5. Step 5: Solve for x
    x = 133,343,166,978,592.98/12,781,889.96
  6. Step 6: Final answer
    x = 10,432,194.88

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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.