Home / 61,002,099.60-91,503,149.40-20,612,000.40

Finding the Fourth Proportional to 61,002,099.60, 91,503,149.40 and 20,612,000.40

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Solution

The fourth proportional to 61,002,099.60, 91,503,149.40 and 20,612,000.40 is: 30,918,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,002,099.60 : 91,503,149.40 = 20,612,000.40 : x
  2. Step 2: Convert to fraction form
    61,002,099.60/91,503,149.40 = 20,612,000.40/x
  3. Step 3: Cross multiply
    61,002,099.60x = 91,503,149.40 × 20,612,000.40
  4. Step 4: Simplify right side
    61,002,099.60x = 1,886,062,952,034,059.75
  5. Step 5: Solve for x
    x = 1,886,062,952,034,059.75/61,002,099.60
  6. Step 6: Final answer
    x = 30,918,000.60

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1.5x scale

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.