Home / 21,329,147.60-31,993,721.40-13,676,397.20

Finding the Fourth Proportional to 21,329,147.60, 31,993,721.40 and 13,676,397.20

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Solution

The fourth proportional to 21,329,147.60, 31,993,721.40 and 13,676,397.20 is: 20,514,595.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329,147.60 : 31,993,721.40 = 13,676,397.20 : x
  2. Step 2: Convert to fraction form
    21,329,147.60/31,993,721.40 = 13,676,397.20/x
  3. Step 3: Cross multiply
    21,329,147.60x = 31,993,721.40 × 13,676,397.20
  4. Step 4: Simplify right side
    21,329,147.60x = 437,558,841,772,540.06
  5. Step 5: Solve for x
    x = 437,558,841,772,540.06/21,329,147.60
  6. Step 6: Final answer
    x = 20,514,595.80

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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.