Home / 3,169,779.40-4,372,901.42-2,136,909.88

Finding the Fourth Proportional to 3,169,779.40, 4,372,901.42 and 2,136,909.88

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Solution

The fourth proportional to 3,169,779.40, 4,372,901.42 and 2,136,909.88 is: 2,947,995.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169,779.40 : 4,372,901.42 = 2,136,909.88 : x
  2. Step 2: Convert to fraction form
    3,169,779.40/4,372,901.42 = 2,136,909.88/x
  3. Step 3: Cross multiply
    3,169,779.40x = 4,372,901.42 × 2,136,909.88
  4. Step 4: Simplify right side
    3,169,779.40x = 9,344,496,216,114.97
  5. Step 5: Solve for x
    x = 9,344,496,216,114.97/3,169,779.40
  6. Step 6: Final answer
    x = 2,947,995.76

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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.