Home / 143,457,937.38-215,268,906.90-77,884,406.70

Finding the Fourth Proportional to 143,457,937.38, 215,268,906.90 and 77,884,406.70

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Solution

The fourth proportional to 143,457,937.38, 215,268,906.90 and 77,884,406.70 is: 116,871,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,457,937.38 : 215,268,906.90 = 77,884,406.70 : x
  2. Step 2: Convert to fraction form
    143,457,937.38/215,268,906.90 = 77,884,406.70/x
  3. Step 3: Cross multiply
    143,457,937.38x = 215,268,906.90 × 77,884,406.70
  4. Step 4: Simplify right side
    143,457,937.38x = 16,766,091,093,787,690
  5. Step 5: Solve for x
    x = 16,766,091,093,787,690/143,457,937.38
  6. Step 6: Final answer
    x = 116,871,128.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.