Home / 143,665,385.87-198,258,224.90-77,585,877.75

Finding the Fourth Proportional to 143,665,385.87, 198,258,224.90 and 77,585,877.75

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Solution

The fourth proportional to 143,665,385.87, 198,258,224.90 and 77,585,877.75 is: 107,068,507.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,665,385.87 : 198,258,224.90 = 77,585,877.75 : x
  2. Step 2: Convert to fraction form
    143,665,385.87/198,258,224.90 = 77,585,877.75/x
  3. Step 3: Cross multiply
    143,665,385.87x = 198,258,224.90 × 77,585,877.75
  4. Step 4: Simplify right side
    143,665,385.87x = 15,382,038,399,635,478
  5. Step 5: Solve for x
    x = 15,382,038,399,635,478/143,665,385.87
  6. Step 6: Final answer
    x = 107,068,507.19

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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.