Home / 21,984,753.77-30,342,598.64-12,198,350.78

Finding the Fourth Proportional to 21,984,753.77, 30,342,598.64 and 12,198,350.78

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Solution

The fourth proportional to 21,984,753.77, 30,342,598.64 and 12,198,350.78 is: 16,835,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984,753.77 : 30,342,598.64 = 12,198,350.78 : x
  2. Step 2: Convert to fraction form
    21,984,753.77/30,342,598.64 = 12,198,350.78/x
  3. Step 3: Cross multiply
    21,984,753.77x = 30,342,598.64 × 12,198,350.78
  4. Step 4: Simplify right side
    21,984,753.77x = 370,129,661,574,766.25
  5. Step 5: Solve for x
    x = 370,129,661,574,766.25/21,984,753.77
  6. Step 6: Final answer
    x = 16,835,742.88

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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.