Home / 21,329,177.60-31,993,766.40-13,676,427.20

Finding the Fourth Proportional to 21,329,177.60, 31,993,766.40 and 13,676,427.20

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Solution

The fourth proportional to 21,329,177.60, 31,993,766.40 and 13,676,427.20 is: 20,514,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329,177.60 : 31,993,766.40 = 13,676,427.20 : x
  2. Step 2: Convert to fraction form
    21,329,177.60/31,993,766.40 = 13,676,427.20/x
  3. Step 3: Cross multiply
    21,329,177.60x = 31,993,766.40 × 13,676,427.20
  4. Step 4: Simplify right side
    21,329,177.60x = 437,560,417,023,406.06
  5. Step 5: Solve for x
    x = 437,560,417,023,406.06/21,329,177.60
  6. Step 6: Final answer
    x = 20,514,640.80

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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.