Home / 145,223,380.40-217,536,472.20-99,836,423.60

Finding the Fourth Proportional to 145,223,380.40, 217,536,472.20 and 99,836,423.60

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Solution

The fourth proportional to 145,223,380.40, 217,536,472.20 and 99,836,423.60 is: 149,549,358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,223,380.40 : 217,536,472.20 = 99,836,423.60 : x
  2. Step 2: Convert to fraction form
    145,223,380.40/217,536,472.20 = 99,836,423.60/x
  3. Step 3: Cross multiply
    145,223,380.40x = 217,536,472.20 × 99,836,423.60
  4. Step 4: Simplify right side
    145,223,380.40x = 21,718,063,387,008,820
  5. Step 5: Solve for x
    x = 21,718,063,387,008,820/145,223,380.40
  6. Step 6: Final answer
    x = 149,549,358.56

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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.