Home / 6,439,626.20-9,659,439.30-5,767,779.80

Finding the Fourth Proportional to 6,439,626.20, 9,659,439.30 and 5,767,779.80

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Solution

The fourth proportional to 6,439,626.20, 9,659,439.30 and 5,767,779.80 is: 8,651,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,626.20 : 9,659,439.30 = 5,767,779.80 : x
  2. Step 2: Convert to fraction form
    6,439,626.20/9,659,439.30 = 5,767,779.80/x
  3. Step 3: Cross multiply
    6,439,626.20x = 9,659,439.30 × 5,767,779.80
  4. Step 4: Simplify right side
    6,439,626.20x = 55,713,518,873,866.14
  5. Step 5: Solve for x
    x = 55,713,518,873,866.14/6,439,626.20
  6. Step 6: Final answer
    x = 8,651,669.70

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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.