Home / 8,791,643.20-13,187,464.80-6,240,726.40

Finding the Fourth Proportional to 8,791,643.20, 13,187,464.80 and 6,240,726.40

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Solution

The fourth proportional to 8,791,643.20, 13,187,464.80 and 6,240,726.40 is: 9,361,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,643.20 : 13,187,464.80 = 6,240,726.40 : x
  2. Step 2: Convert to fraction form
    8,791,643.20/13,187,464.80 = 6,240,726.40/x
  3. Step 3: Cross multiply
    8,791,643.20x = 13,187,464.80 × 6,240,726.40
  4. Step 4: Simplify right side
    8,791,643.20x = 82,299,359,726,430.73
  5. Step 5: Solve for x
    x = 82,299,359,726,430.73/8,791,643.20
  6. Step 6: Final answer
    x = 9,361,089.60

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Similar ratio
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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.