Home / 129,279,959.38-178,410,650.25-70,545,847.29

Finding the Fourth Proportional to 129,279,959.38, 178,410,650.25 and 70,545,847.29

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Solution

The fourth proportional to 129,279,959.38, 178,410,650.25 and 70,545,847.29 is: 97,355,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,279,959.38 : 178,410,650.25 = 70,545,847.29 : x
  2. Step 2: Convert to fraction form
    129,279,959.38/178,410,650.25 = 70,545,847.29/x
  3. Step 3: Cross multiply
    129,279,959.38x = 178,410,650.25 × 70,545,847.29
  4. Step 4: Simplify right side
    129,279,959.38x = 12,586,130,487,446,102
  5. Step 5: Solve for x
    x = 12,586,130,487,446,102/129,279,959.38
  6. Step 6: Final answer
    x = 97,355,619.14

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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.