Home / 21,780,147.30-32,670,220.95-18,378,924.90

Finding the Fourth Proportional to 21,780,147.30, 32,670,220.95 and 18,378,924.90

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Solution

The fourth proportional to 21,780,147.30, 32,670,220.95 and 18,378,924.90 is: 27,568,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780,147.30 : 32,670,220.95 = 18,378,924.90 : x
  2. Step 2: Convert to fraction form
    21,780,147.30/32,670,220.95 = 18,378,924.90/x
  3. Step 3: Cross multiply
    21,780,147.30x = 32,670,220.95 × 18,378,924.90
  4. Step 4: Simplify right side
    21,780,147.30x = 600,443,537,306,456.62
  5. Step 5: Solve for x
    x = 600,443,537,306,456.62/21,780,147.30
  6. Step 6: Final answer
    x = 27,568,387.35

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1.5x scale

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.