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Finding the Fourth Proportional to 79,484,364.80, 119,254,540.80 and 39,067,827.20

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Solution

The fourth proportional to 79,484,364.80, 119,254,540.80 and 39,067,827.20 is: 58,615,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,484,364.80 : 119,254,540.80 = 39,067,827.20 : x
  2. Step 2: Convert to fraction form
    79,484,364.80/119,254,540.80 = 39,067,827.20/x
  3. Step 3: Cross multiply
    79,484,364.80x = 119,254,540.80 × 39,067,827.20
  4. Step 4: Simplify right side
    79,484,364.80x = 4,659,015,792,789,750
  5. Step 5: Solve for x
    x = 4,659,015,792,789,750/79,484,364.80
  6. Step 6: Final answer
    x = 58,615,500.10

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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.