Home / 99,817,793.60-149,726,690.40-66,939,310.40

Finding the Fourth Proportional to 99,817,793.60, 149,726,690.40 and 66,939,310.40

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Solution

The fourth proportional to 99,817,793.60, 149,726,690.40 and 66,939,310.40 is: 100,408,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,817,793.60 : 149,726,690.40 = 66,939,310.40 : x
  2. Step 2: Convert to fraction form
    99,817,793.60/149,726,690.40 = 66,939,310.40/x
  3. Step 3: Cross multiply
    99,817,793.60x = 149,726,690.40 × 66,939,310.40
  4. Step 4: Simplify right side
    99,817,793.60x = 10,022,601,403,850,300
  5. Step 5: Solve for x
    x = 10,022,601,403,850,300/99,817,793.60
  6. Step 6: Final answer
    x = 100,408,965.60

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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.