Home / 31,136,965.79-42,969,011.13-16,815,387.74

Finding the Fourth Proportional to 31,136,965.79, 42,969,011.13 and 16,815,387.74

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Solution

The fourth proportional to 31,136,965.79, 42,969,011.13 and 16,815,387.74 is: 23,205,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136,965.79 : 42,969,011.13 = 16,815,387.74 : x
  2. Step 2: Convert to fraction form
    31,136,965.79/42,969,011.13 = 16,815,387.74/x
  3. Step 3: Cross multiply
    31,136,965.79x = 42,969,011.13 × 16,815,387.74
  4. Step 4: Simplify right side
    31,136,965.79x = 722,540,582,740,480.50
  5. Step 5: Solve for x
    x = 722,540,582,740,480.50/31,136,965.79
  6. Step 6: Final answer
    x = 23,205,234.18

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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.