Home / 15,509,651.40-21,389,385.56-9,708,961.95

Finding the Fourth Proportional to 15,509,651.40, 21,389,385.56 and 9,708,961.95

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Solution

The fourth proportional to 15,509,651.40, 21,389,385.56 and 9,708,961.95 is: 13,389,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,509,651.40 : 21,389,385.56 = 9,708,961.95 : x
  2. Step 2: Convert to fraction form
    15,509,651.40/21,389,385.56 = 9,708,961.95/x
  3. Step 3: Cross multiply
    15,509,651.40x = 21,389,385.56 × 9,708,961.95
  4. Step 4: Simplify right side
    15,509,651.40x = 207,668,730,487,374.62
  5. Step 5: Solve for x
    x = 207,668,730,487,374.62/15,509,651.40
  6. Step 6: Final answer
    x = 13,389,645.27

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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.