Home / 20,816,787.39-28,730,172.95-11,994,549.65

Finding the Fourth Proportional to 20,816,787.39, 28,730,172.95 and 11,994,549.65

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Solution

The fourth proportional to 20,816,787.39, 28,730,172.95 and 11,994,549.65 is: 16,554,210.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816,787.39 : 28,730,172.95 = 11,994,549.65 : x
  2. Step 2: Convert to fraction form
    20,816,787.39/28,730,172.95 = 11,994,549.65/x
  3. Step 3: Cross multiply
    20,816,787.39x = 28,730,172.95 × 11,994,549.65
  4. Step 4: Simplify right side
    20,816,787.39x = 344,605,485,850,956.06
  5. Step 5: Solve for x
    x = 344,605,485,850,956.06/20,816,787.39
  6. Step 6: Final answer
    x = 16,554,210.76

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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.