Home / 145,157,002.40-217,436,905.20-99,770,045.60

Finding the Fourth Proportional to 145,157,002.40, 217,436,905.20 and 99,770,045.60

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Solution

The fourth proportional to 145,157,002.40, 217,436,905.20 and 99,770,045.60 is: 149,449,834.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,157,002.40 : 217,436,905.20 = 99,770,045.60 : x
  2. Step 2: Convert to fraction form
    145,157,002.40/217,436,905.20 = 99,770,045.60/x
  3. Step 3: Cross multiply
    145,157,002.40x = 217,436,905.20 × 99,770,045.60
  4. Step 4: Simplify right side
    145,157,002.40x = 21,693,689,946,926,876
  5. Step 5: Solve for x
    x = 21,693,689,946,926,876/145,157,002.40
  6. Step 6: Final answer
    x = 149,449,834.24

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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.