Home / 72,024,238.80-108,046,985.40-20,899,611.44

Finding the Fourth Proportional to 72,024,238.80, 108,046,985.40 and 20,899,611.44

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Solution

The fourth proportional to 72,024,238.80, 108,046,985.40 and 20,899,611.44 is: 31,352,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,024,238.80 : 108,046,985.40 = 20,899,611.44 : x
  2. Step 2: Convert to fraction form
    72,024,238.80/108,046,985.40 = 20,899,611.44/x
  3. Step 3: Cross multiply
    72,024,238.80x = 108,046,985.40 × 20,899,611.44
  4. Step 4: Simplify right side
    72,024,238.80x = 2,258,140,012,123,353
  5. Step 5: Solve for x
    x = 2,258,140,012,123,353/72,024,238.80
  6. Step 6: Final answer
    x = 31,352,500.90

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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.