Home / 20,649,986.17-28,495,810.43-11,482,432.09

Finding the Fourth Proportional to 20,649,986.17, 28,495,810.43 and 11,482,432.09

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Solution

The fourth proportional to 20,649,986.17, 28,495,810.43 and 11,482,432.09 is: 15,845,105.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649,986.17 : 28,495,810.43 = 11,482,432.09 : x
  2. Step 2: Convert to fraction form
    20,649,986.17/28,495,810.43 = 11,482,432.09/x
  3. Step 3: Cross multiply
    20,649,986.17x = 28,495,810.43 × 11,482,432.09
  4. Step 4: Simplify right side
    20,649,986.17x = 327,201,208,026,396.12
  5. Step 5: Solve for x
    x = 327,201,208,026,396.12/20,649,986.17
  6. Step 6: Final answer
    x = 15,845,105.43

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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.