Home / 12,530,363.80-18,781,548.90-5,340,674.20

Finding the Fourth Proportional to 12,530,363.80, 18,781,548.90 and 5,340,674.20

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Solution

The fourth proportional to 12,530,363.80, 18,781,548.90 and 5,340,674.20 is: 8,005,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530,363.80 : 18,781,548.90 = 5,340,674.20 : x
  2. Step 2: Convert to fraction form
    12,530,363.80/18,781,548.90 = 5,340,674.20/x
  3. Step 3: Cross multiply
    12,530,363.80x = 18,781,548.90 × 5,340,674.20
  4. Step 4: Simplify right side
    12,530,363.80x = 100,306,133,646,268.38
  5. Step 5: Solve for x
    x = 100,306,133,646,268.38/12,530,363.80
  6. Step 6: Final answer
    x = 8,005,045.60

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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.