Home / 129,948,379.60-179,410,305.96-83,619,148.56

Finding the Fourth Proportional to 129,948,379.60, 179,410,305.96 and 83,619,148.56

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Solution

The fourth proportional to 129,948,379.60, 179,410,305.96 and 83,619,148.56 is: 115,446,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,948,379.60 : 179,410,305.96 = 83,619,148.56 : x
  2. Step 2: Convert to fraction form
    129,948,379.60/179,410,305.96 = 83,619,148.56/x
  3. Step 3: Cross multiply
    129,948,379.60x = 179,410,305.96 × 83,619,148.56
  4. Step 4: Simplify right side
    129,948,379.60x = 15,002,137,027,264,294
  5. Step 5: Solve for x
    x = 15,002,137,027,264,294/129,948,379.60
  6. Step 6: Final answer
    x = 115,446,895.71

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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.