Home / 21,690,766.24-29,933,254.16-12,398,535.82

Finding the Fourth Proportional to 21,690,766.24, 29,933,254.16 and 12,398,535.82

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Solution

The fourth proportional to 21,690,766.24, 29,933,254.16 and 12,398,535.82 is: 17,109,977.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690,766.24 : 29,933,254.16 = 12,398,535.82 : x
  2. Step 2: Convert to fraction form
    21,690,766.24/29,933,254.16 = 12,398,535.82/x
  3. Step 3: Cross multiply
    21,690,766.24x = 29,933,254.16 × 12,398,535.82
  4. Step 4: Simplify right side
    21,690,766.24x = 371,128,523,984,868.06
  5. Step 5: Solve for x
    x = 371,128,523,984,868.06/21,690,766.24
  6. Step 6: Final answer
    x = 17,109,977.58

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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.