Home / 12,618,480.60-18,927,720.90-4,099,678.20

Finding the Fourth Proportional to 12,618,480.60, 18,927,720.90 and 4,099,678.20

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Solution

The fourth proportional to 12,618,480.60, 18,927,720.90 and 4,099,678.20 is: 6,149,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,480.60 : 18,927,720.90 = 4,099,678.20 : x
  2. Step 2: Convert to fraction form
    12,618,480.60/18,927,720.90 = 4,099,678.20/x
  3. Step 3: Cross multiply
    12,618,480.60x = 18,927,720.90 × 4,099,678.20
  4. Step 4: Simplify right side
    12,618,480.60x = 77,597,564,749,414.38
  5. Step 5: Solve for x
    x = 77,597,564,749,414.38/12,618,480.60
  6. Step 6: Final answer
    x = 6,149,517.30

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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.