Home / 13,558,546.11-18,711,159.05-7,977,182.23

Finding the Fourth Proportional to 13,558,546.11, 18,711,159.05 and 7,977,182.23

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Solution

The fourth proportional to 13,558,546.11, 18,711,159.05 and 7,977,182.23 is: 11,008,726.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558,546.11 : 18,711,159.05 = 7,977,182.23 : x
  2. Step 2: Convert to fraction form
    13,558,546.11/18,711,159.05 = 7,977,182.23/x
  3. Step 3: Cross multiply
    13,558,546.11x = 18,711,159.05 × 7,977,182.23
  4. Step 4: Simplify right side
    13,558,546.11x = 149,262,325,476,363.69
  5. Step 5: Solve for x
    x = 149,262,325,476,363.69/13,558,546.11
  6. Step 6: Final answer
    x = 11,008,726.47

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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.