Home / 13,558,546.25-18,711,159.21-7,977,182.36

Finding the Fourth Proportional to 13,558,546.25, 18,711,159.21 and 7,977,182.36

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Solution

The fourth proportional to 13,558,546.25, 18,711,159.21 and 7,977,182.36 is: 11,008,726.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558,546.25 : 18,711,159.21 = 7,977,182.36 : x
  2. Step 2: Convert to fraction form
    13,558,546.25/18,711,159.21 = 7,977,182.36/x
  3. Step 3: Cross multiply
    13,558,546.25x = 18,711,159.21 × 7,977,182.36
  4. Step 4: Simplify right side
    13,558,546.25x = 149,262,329,091,607.75
  5. Step 5: Solve for x
    x = 149,262,329,091,607.75/13,558,546.25
  6. Step 6: Final answer
    x = 11,008,726.63

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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.