Home / 12,890,167.81-17,788,076.49-7,088,948.95

Finding the Fourth Proportional to 12,890,167.81, 17,788,076.49 and 7,088,948.95

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Solution

The fourth proportional to 12,890,167.81, 17,788,076.49 and 7,088,948.95 is: 9,782,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,167.81 : 17,788,076.49 = 7,088,948.95 : x
  2. Step 2: Convert to fraction form
    12,890,167.81/17,788,076.49 = 7,088,948.95/x
  3. Step 3: Cross multiply
    12,890,167.81x = 17,788,076.49 × 7,088,948.95
  4. Step 4: Simplify right side
    12,890,167.81x = 126,098,766,156,305.17
  5. Step 5: Solve for x
    x = 126,098,766,156,305.17/12,890,167.81
  6. Step 6: Final answer
    x = 9,782,554.27

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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.