Home / 20,899,278.10-28,845,246.82-12,079,104.04

Finding the Fourth Proportional to 20,899,278.10, 28,845,246.82 and 12,079,104.04

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Solution

The fourth proportional to 20,899,278.10, 28,845,246.82 and 12,079,104.04 is: 16,671,615.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899,278.10 : 28,845,246.82 = 12,079,104.04 : x
  2. Step 2: Convert to fraction form
    20,899,278.10/28,845,246.82 = 12,079,104.04/x
  3. Step 3: Cross multiply
    20,899,278.10x = 28,845,246.82 × 12,079,104.04
  4. Step 4: Simplify right side
    20,899,278.10x = 348,424,737,398,259.12
  5. Step 5: Solve for x
    x = 348,424,737,398,259.12/20,899,278.10
  6. Step 6: Final answer
    x = 16,671,615.92

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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.