Home / 143,838,472.60-215,757,708.90-83,409,621.40

Finding the Fourth Proportional to 143,838,472.60, 215,757,708.90 and 83,409,621.40

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Solution

The fourth proportional to 143,838,472.60, 215,757,708.90 and 83,409,621.40 is: 125,114,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,838,472.60 : 215,757,708.90 = 83,409,621.40 : x
  2. Step 2: Convert to fraction form
    143,838,472.60/215,757,708.90 = 83,409,621.40/x
  3. Step 3: Cross multiply
    143,838,472.60x = 215,757,708.90 × 83,409,621.40
  4. Step 4: Simplify right side
    143,838,472.60x = 17,996,268,813,480,412
  5. Step 5: Solve for x
    x = 17,996,268,813,480,412/143,838,472.60
  6. Step 6: Final answer
    x = 125,114,432.10

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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.