Home / 13,061,916.14-18,025,659.34-7,181,798.90

Finding the Fourth Proportional to 13,061,916.14, 18,025,659.34 and 7,181,798.90

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Solution

The fourth proportional to 13,061,916.14, 18,025,659.34 and 7,181,798.90 is: 9,911,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,061,916.14 : 18,025,659.34 = 7,181,798.90 : x
  2. Step 2: Convert to fraction form
    13,061,916.14/18,025,659.34 = 7,181,798.90/x
  3. Step 3: Cross multiply
    13,061,916.14x = 18,025,659.34 × 7,181,798.90
  4. Step 4: Simplify right side
    13,061,916.14x = 129,456,660,311,703.91
  5. Step 5: Solve for x
    x = 129,456,660,311,703.91/13,061,916.14
  6. Step 6: Final answer
    x = 9,911,000.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.