Home / 18,181,371.74-25,090,826.70-9,921,967.11

Finding the Fourth Proportional to 18,181,371.74, 25,090,826.70 and 9,921,967.11

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Solution

The fourth proportional to 18,181,371.74, 25,090,826.70 and 9,921,967.11 is: 13,692,605.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181,371.74 : 25,090,826.70 = 9,921,967.11 : x
  2. Step 2: Convert to fraction form
    18,181,371.74/25,090,826.70 = 9,921,967.11/x
  3. Step 3: Cross multiply
    18,181,371.74x = 25,090,826.70 × 9,921,967.11
  4. Step 4: Simplify right side
    18,181,371.74x = 248,950,357,280,109.81
  5. Step 5: Solve for x
    x = 248,950,357,280,109.81/18,181,371.74
  6. Step 6: Final answer
    x = 13,692,605.87

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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.