Home / 21,650,234.10-29,877,320.57-12,948,405.31

Finding the Fourth Proportional to 21,650,234.10, 29,877,320.57 and 12,948,405.31

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Solution

The fourth proportional to 21,650,234.10, 29,877,320.57 and 12,948,405.31 is: 17,868,797.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650,234.10 : 29,877,320.57 = 12,948,405.31 : x
  2. Step 2: Convert to fraction form
    21,650,234.10/29,877,320.57 = 12,948,405.31/x
  3. Step 3: Cross multiply
    21,650,234.10x = 29,877,320.57 × 12,948,405.31
  4. Step 4: Simplify right side
    21,650,234.10x = 386,863,656,317,160.25
  5. Step 5: Solve for x
    x = 386,863,656,317,160.25/21,650,234.10
  6. Step 6: Final answer
    x = 17,868,797.84

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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.