Home / 12,357,078.30-18,535,617.45-11,517,270.30

Finding the Fourth Proportional to 12,357,078.30, 18,535,617.45 and 11,517,270.30

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Solution

The fourth proportional to 12,357,078.30, 18,535,617.45 and 11,517,270.30 is: 17,275,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,078.30 : 18,535,617.45 = 11,517,270.30 : x
  2. Step 2: Convert to fraction form
    12,357,078.30/18,535,617.45 = 11,517,270.30/x
  3. Step 3: Cross multiply
    12,357,078.30x = 18,535,617.45 × 11,517,270.30
  4. Step 4: Simplify right side
    12,357,078.30x = 213,479,716,349,046.75
  5. Step 5: Solve for x
    x = 213,479,716,349,046.75/12,357,078.30
  6. Step 6: Final answer
    x = 17,275,905.45

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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.