Home / 99,583,419.60-149,375,129.40-31,433,000.40

Finding the Fourth Proportional to 99,583,419.60, 149,375,129.40 and 31,433,000.40

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Solution

The fourth proportional to 99,583,419.60, 149,375,129.40 and 31,433,000.40 is: 47,149,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,583,419.60 : 149,375,129.40 = 31,433,000.40 : x
  2. Step 2: Convert to fraction form
    99,583,419.60/149,375,129.40 = 31,433,000.40/x
  3. Step 3: Cross multiply
    99,583,419.60x = 149,375,129.40 × 31,433,000.40
  4. Step 4: Simplify right side
    99,583,419.60x = 4,695,308,502,180,252
  5. Step 5: Solve for x
    x = 4,695,308,502,180,252/99,583,419.60
  6. Step 6: Final answer
    x = 47,149,500.60

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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.