Home / 72,611,149.92-100,203,385.20-40,016,101.92

Finding the Fourth Proportional to 72,611,149.92, 100,203,385.20 and 40,016,101.92

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Solution

The fourth proportional to 72,611,149.92, 100,203,385.20 and 40,016,101.92 is: 55,222,219.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,611,149.92 : 100,203,385.20 = 40,016,101.92 : x
  2. Step 2: Convert to fraction form
    72,611,149.92/100,203,385.20 = 40,016,101.92/x
  3. Step 3: Cross multiply
    72,611,149.92x = 100,203,385.20 × 40,016,101.92
  4. Step 4: Simplify right side
    72,611,149.92x = 4,009,748,874,892,220
  5. Step 5: Solve for x
    x = 4,009,748,874,892,220/72,611,149.92
  6. Step 6: Final answer
    x = 55,222,219.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.