Home / 115,443,397.56-159,327,738.91-70,781,471.36

Finding the Fourth Proportional to 115,443,397.56, 159,327,738.91 and 70,781,471.36

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Solution

The fourth proportional to 115,443,397.56, 159,327,738.91 and 70,781,471.36 is: 97,688,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,443,397.56 : 159,327,738.91 = 70,781,471.36 : x
  2. Step 2: Convert to fraction form
    115,443,397.56/159,327,738.91 = 70,781,471.36/x
  3. Step 3: Cross multiply
    115,443,397.56x = 159,327,738.91 × 70,781,471.36
  4. Step 4: Simplify right side
    115,443,397.56x = 11,277,451,788,511,722
  5. Step 5: Solve for x
    x = 11,277,451,788,511,722/115,443,397.56
  6. Step 6: Final answer
    x = 97,688,148.71

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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.