Home / 20,696,307.20-28,561,764.48-11,528,947.52

Finding the Fourth Proportional to 20,696,307.20, 28,561,764.48 and 11,528,947.52

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Solution

The fourth proportional to 20,696,307.20, 28,561,764.48 and 11,528,947.52 is: 15,910,426.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696,307.20 : 28,561,764.48 = 11,528,947.52 : x
  2. Step 2: Convert to fraction form
    20,696,307.20/28,561,764.48 = 11,528,947.52/x
  3. Step 3: Cross multiply
    20,696,307.20x = 28,561,764.48 × 11,528,947.52
  4. Step 4: Simplify right side
    20,696,307.20x = 329,287,083,768,520.06
  5. Step 5: Solve for x
    x = 329,287,083,768,520.06/20,696,307.20
  6. Step 6: Final answer
    x = 15,910,426.95

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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.