Home / 12,151,805.40-18,232,373.70-11,960,515.80

Finding the Fourth Proportional to 12,151,805.40, 18,232,373.70 and 11,960,515.80

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Solution

The fourth proportional to 12,151,805.40, 18,232,373.70 and 11,960,515.80 is: 17,945,365.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151,805.40 : 18,232,373.70 = 11,960,515.80 : x
  2. Step 2: Convert to fraction form
    12,151,805.40/18,232,373.70 = 11,960,515.80/x
  3. Step 3: Cross multiply
    12,151,805.40x = 18,232,373.70 × 11,960,515.80
  4. Step 4: Simplify right side
    12,151,805.40x = 218,068,593,710,354.47
  5. Step 5: Solve for x
    x = 218,068,593,710,354.47/12,151,805.40
  6. Step 6: Final answer
    x = 17,945,365.86

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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.