Home / 12,476,728.70-18,715,093.05-4,390,952.30

Finding the Fourth Proportional to 12,476,728.70, 18,715,093.05 and 4,390,952.30

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Solution

The fourth proportional to 12,476,728.70, 18,715,093.05 and 4,390,952.30 is: 6,586,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,728.70 : 18,715,093.05 = 4,390,952.30 : x
  2. Step 2: Convert to fraction form
    12,476,728.70/18,715,093.05 = 4,390,952.30/x
  3. Step 3: Cross multiply
    12,476,728.70x = 18,715,093.05 × 4,390,952.30
  4. Step 4: Simplify right side
    12,476,728.70x = 82,177,080,872,611.52
  5. Step 5: Solve for x
    x = 82,177,080,872,611.52/12,476,728.70
  6. Step 6: Final answer
    x = 6,586,428.45

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Double scale
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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.