Home / 20,687,294.04-28,548,465.59-11,990,511.15

Finding the Fourth Proportional to 20,687,294.04, 28,548,465.59 and 11,990,511.15

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Solution

The fourth proportional to 20,687,294.04, 28,548,465.59 and 11,990,511.15 is: 16,546,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,294.04 : 28,548,465.59 = 11,990,511.15 : x
  2. Step 2: Convert to fraction form
    20,687,294.04/28,548,465.59 = 11,990,511.15/x
  3. Step 3: Cross multiply
    20,687,294.04x = 28,548,465.59 × 11,990,511.15
  4. Step 4: Simplify right side
    20,687,294.04x = 342,310,694,972,286.31
  5. Step 5: Solve for x
    x = 342,310,694,972,286.31/20,687,294.04
  6. Step 6: Final answer
    x = 16,546,905.28

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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.