Home / 20,976,366.52-28,947,925.74-11,809,335.16

Finding the Fourth Proportional to 20,976,366.52, 28,947,925.74 and 11,809,335.16

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Solution

The fourth proportional to 20,976,366.52, 28,947,925.74 and 11,809,335.16 is: 16,297,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976,366.52 : 28,947,925.74 = 11,809,335.16 : x
  2. Step 2: Convert to fraction form
    20,976,366.52/28,947,925.74 = 11,809,335.16/x
  3. Step 3: Cross multiply
    20,976,366.52x = 28,947,925.74 × 11,809,335.16
  4. Step 4: Simplify right side
    20,976,366.52x = 341,855,757,250,451
  5. Step 5: Solve for x
    x = 341,855,757,250,451/20,976,366.52
  6. Step 6: Final answer
    x = 16,297,186.50

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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.