Home / 18,754,930.40-28,129,630.80-5,293,119.20

Finding the Fourth Proportional to 18,754,930.40, 28,129,630.80 and 5,293,119.20

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Solution

The fourth proportional to 18,754,930.40, 28,129,630.80 and 5,293,119.20 is: 7,938,898.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754,930.40 : 28,129,630.80 = 5,293,119.20 : x
  2. Step 2: Convert to fraction form
    18,754,930.40/28,129,630.80 = 5,293,119.20/x
  3. Step 3: Cross multiply
    18,754,930.40x = 28,129,630.80 × 5,293,119.20
  4. Step 4: Simplify right side
    18,754,930.40x = 148,893,488,876,391.38
  5. Step 5: Solve for x
    x = 148,893,488,876,391.38/18,754,930.40
  6. Step 6: Final answer
    x = 7,938,898.50

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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.