Home / 9,181,819.20-13,772,728.80-8,363,006.40

Finding the Fourth Proportional to 9,181,819.20, 13,772,728.80 and 8,363,006.40

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Solution

The fourth proportional to 9,181,819.20, 13,772,728.80 and 8,363,006.40 is: 12,544,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181,819.20 : 13,772,728.80 = 8,363,006.40 : x
  2. Step 2: Convert to fraction form
    9,181,819.20/13,772,728.80 = 8,363,006.40/x
  3. Step 3: Cross multiply
    9,181,819.20x = 13,772,728.80 × 8,363,006.40
  4. Step 4: Simplify right side
    9,181,819.20x = 115,181,419,099,864.33
  5. Step 5: Solve for x
    x = 115,181,419,099,864.33/9,181,819.20
  6. Step 6: Final answer
    x = 12,544,509.60

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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.