Home / 21,329,124.60-31,993,686.90-13,676,374.20

Finding the Fourth Proportional to 21,329,124.60, 31,993,686.90 and 13,676,374.20

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Solution

The fourth proportional to 21,329,124.60, 31,993,686.90 and 13,676,374.20 is: 20,514,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329,124.60 : 31,993,686.90 = 13,676,374.20 : x
  2. Step 2: Convert to fraction form
    21,329,124.60/31,993,686.90 = 13,676,374.20/x
  3. Step 3: Cross multiply
    21,329,124.60x = 31,993,686.90 × 13,676,374.20
  4. Step 4: Simplify right side
    21,329,124.60x = 437,557,634,082,037.94
  5. Step 5: Solve for x
    x = 437,557,634,082,037.94/21,329,124.60
  6. Step 6: Final answer
    x = 20,514,561.30

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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.