Home / 21,536,815.90-29,720,806.05-11,747,259.58

Finding the Fourth Proportional to 21,536,815.90, 29,720,806.05 and 11,747,259.58

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Solution

The fourth proportional to 21,536,815.90, 29,720,806.05 and 11,747,259.58 is: 16,211,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,536,815.90 : 29,720,806.05 = 11,747,259.58 : x
  2. Step 2: Convert to fraction form
    21,536,815.90/29,720,806.05 = 11,747,259.58/x
  3. Step 3: Cross multiply
    21,536,815.90x = 29,720,806.05 × 11,747,259.58
  4. Step 4: Simplify right side
    21,536,815.90x = 349,138,023,596,184.50
  5. Step 5: Solve for x
    x = 349,138,023,596,184.50/21,536,815.90
  6. Step 6: Final answer
    x = 16,211,218.28

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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.