Home / 12,331,336.80-18,497,005.20-3,812,534.40

Finding the Fourth Proportional to 12,331,336.80, 18,497,005.20 and 3,812,534.40

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Solution

The fourth proportional to 12,331,336.80, 18,497,005.20 and 3,812,534.40 is: 5,718,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331,336.80 : 18,497,005.20 = 3,812,534.40 : x
  2. Step 2: Convert to fraction form
    12,331,336.80/18,497,005.20 = 3,812,534.40/x
  3. Step 3: Cross multiply
    12,331,336.80x = 18,497,005.20 × 3,812,534.40
  4. Step 4: Simplify right side
    12,331,336.80x = 70,520,468,621,978.88
  5. Step 5: Solve for x
    x = 70,520,468,621,978.88/12,331,336.80
  6. Step 6: Final answer
    x = 5,718,801.60

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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.