Home / 20,657,614.20-30,986,421.30-19,382,155.80

Finding the Fourth Proportional to 20,657,614.20, 30,986,421.30 and 19,382,155.80

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Solution

The fourth proportional to 20,657,614.20, 30,986,421.30 and 19,382,155.80 is: 29,073,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657,614.20 : 30,986,421.30 = 19,382,155.80 : x
  2. Step 2: Convert to fraction form
    20,657,614.20/30,986,421.30 = 19,382,155.80/x
  3. Step 3: Cross multiply
    20,657,614.20x = 30,986,421.30 × 19,382,155.80
  4. Step 4: Simplify right side
    20,657,614.20x = 600,583,645,321,038.62
  5. Step 5: Solve for x
    x = 600,583,645,321,038.62/20,657,614.20
  6. Step 6: Final answer
    x = 29,073,233.70

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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.