Home / 28,025,273.40-42,037,910.10-12,879,204.90

Finding the Fourth Proportional to 28,025,273.40, 42,037,910.10 and 12,879,204.90

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Solution

The fourth proportional to 28,025,273.40, 42,037,910.10 and 12,879,204.90 is: 19,318,807.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,273.40 : 42,037,910.10 = 12,879,204.90 : x
  2. Step 2: Convert to fraction form
    28,025,273.40/42,037,910.10 = 12,879,204.90/x
  3. Step 3: Cross multiply
    28,025,273.40x = 42,037,910.10 × 12,879,204.90
  4. Step 4: Simplify right side
    28,025,273.40x = 541,414,857,745,679.50
  5. Step 5: Solve for x
    x = 541,414,857,745,679.50/28,025,273.40
  6. Step 6: Final answer
    x = 19,318,807.35

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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.