Home / 10,890,043.90-16,335,065.85-9,189,432.70

Finding the Fourth Proportional to 10,890,043.90, 16,335,065.85 and 9,189,432.70

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Solution

The fourth proportional to 10,890,043.90, 16,335,065.85 and 9,189,432.70 is: 13,784,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,043.90 : 16,335,065.85 = 9,189,432.70 : x
  2. Step 2: Convert to fraction form
    10,890,043.90/16,335,065.85 = 9,189,432.70/x
  3. Step 3: Cross multiply
    10,890,043.90x = 16,335,065.85 × 9,189,432.70
  4. Step 4: Simplify right side
    10,890,043.90x = 150,109,988,278,643.28
  5. Step 5: Solve for x
    x = 150,109,988,278,643.28/10,890,043.90
  6. Step 6: Final answer
    x = 13,784,149.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.