Home / 129,425,327.50-178,488,662.37-101,171,433.19

Finding the Fourth Proportional to 129,425,327.50, 178,488,662.37 and 101,171,433.19

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Solution

The fourth proportional to 129,425,327.50, 178,488,662.37 and 101,171,433.19 is: 139,524,111.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,425,327.50 : 178,488,662.37 = 101,171,433.19 : x
  2. Step 2: Convert to fraction form
    129,425,327.50/178,488,662.37 = 101,171,433.19/x
  3. Step 3: Cross multiply
    129,425,327.50x = 178,488,662.37 × 101,171,433.19
  4. Step 4: Simplify right side
    129,425,327.50x = 18,057,953,780,138,924
  5. Step 5: Solve for x
    x = 18,057,953,780,138,924/129,425,327.50
  6. Step 6: Final answer
    x = 139,524,111.15

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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.