Home / 145,375,408.20-218,063,112.30-99,458,905.80

Finding the Fourth Proportional to 145,375,408.20, 218,063,112.30 and 99,458,905.80

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Solution

The fourth proportional to 145,375,408.20, 218,063,112.30 and 99,458,905.80 is: 149,188,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,375,408.20 : 218,063,112.30 = 99,458,905.80 : x
  2. Step 2: Convert to fraction form
    145,375,408.20/218,063,112.30 = 99,458,905.80/x
  3. Step 3: Cross multiply
    145,375,408.20x = 218,063,112.30 × 99,458,905.80
  4. Step 4: Simplify right side
    145,375,408.20x = 21,688,318,544,700,520
  5. Step 5: Solve for x
    x = 21,688,318,544,700,520/145,375,408.20
  6. Step 6: Final answer
    x = 149,188,358.70

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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.