Home / 129,373,887.96-178,551,621-73,632,861

Finding the Fourth Proportional to 129,373,887.96, 178,551,621 and 73,632,861

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Solution

The fourth proportional to 129,373,887.96, 178,551,621 and 73,632,861 is: 101,622,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,373,887.96 : 178,551,621 = 73,632,861 : x
  2. Step 2: Convert to fraction form
    129,373,887.96/178,551,621 = 73,632,861/x
  3. Step 3: Cross multiply
    129,373,887.96x = 178,551,621 × 73,632,861
  4. Step 4: Simplify right side
    129,373,887.96x = 13,147,266,690,417,680
  5. Step 5: Solve for x
    x = 13,147,266,690,417,680/129,373,887.96
  6. Step 6: Final answer
    x = 101,622,258.54

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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.