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Finding the Fourth Proportional to 12,097,807.20, 18,146,710.80 and 4,523,788.80

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Solution

The fourth proportional to 12,097,807.20, 18,146,710.80 and 4,523,788.80 is: 6,785,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,807.20 : 18,146,710.80 = 4,523,788.80 : x
  2. Step 2: Convert to fraction form
    12,097,807.20/18,146,710.80 = 4,523,788.80/x
  3. Step 3: Cross multiply
    12,097,807.20x = 18,146,710.80 × 4,523,788.80
  4. Step 4: Simplify right side
    12,097,807.20x = 82,091,887,073,879.05
  5. Step 5: Solve for x
    x = 82,091,887,073,879.05/12,097,807.20
  6. Step 6: Final answer
    x = 6,785,683.20

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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.