Home / 12,252,006.40-18,378,009.60-11,664,140.80

Finding the Fourth Proportional to 12,252,006.40, 18,378,009.60 and 11,664,140.80

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Solution

The fourth proportional to 12,252,006.40, 18,378,009.60 and 11,664,140.80 is: 17,496,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252,006.40 : 18,378,009.60 = 11,664,140.80 : x
  2. Step 2: Convert to fraction form
    12,252,006.40/18,378,009.60 = 11,664,140.80/x
  3. Step 3: Cross multiply
    12,252,006.40x = 18,378,009.60 × 11,664,140.80
  4. Step 4: Simplify right side
    12,252,006.40x = 214,363,691,598,151.72
  5. Step 5: Solve for x
    x = 214,363,691,598,151.72/12,252,006.40
  6. Step 6: Final answer
    x = 17,496,211.20

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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.