Home / 20,899,266.77-28,845,231.20-12,079,092.71

Finding the Fourth Proportional to 20,899,266.77, 28,845,231.20 and 12,079,092.71

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Solution

The fourth proportional to 20,899,266.77, 28,845,231.20 and 12,079,092.71 is: 16,671,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899,266.77 : 28,845,231.20 = 12,079,092.71 : x
  2. Step 2: Convert to fraction form
    20,899,266.77/28,845,231.20 = 12,079,092.71/x
  3. Step 3: Cross multiply
    20,899,266.77x = 28,845,231.20 × 12,079,092.71
  4. Step 4: Simplify right side
    20,899,266.77x = 348,424,221,963,198.75
  5. Step 5: Solve for x
    x = 348,424,221,963,198.75/20,899,266.77
  6. Step 6: Final answer
    x = 16,671,600.29

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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.