Home / 12,252,021.40-18,378,032.10-11,664,155.80

Finding the Fourth Proportional to 12,252,021.40, 18,378,032.10 and 11,664,155.80

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Solution

The fourth proportional to 12,252,021.40, 18,378,032.10 and 11,664,155.80 is: 17,496,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252,021.40 : 18,378,032.10 = 11,664,155.80 : x
  2. Step 2: Convert to fraction form
    12,252,021.40/18,378,032.10 = 11,664,155.80/x
  3. Step 3: Cross multiply
    12,252,021.40x = 18,378,032.10 × 11,664,155.80
  4. Step 4: Simplify right side
    12,252,021.40x = 214,364,229,711,801.22
  5. Step 5: Solve for x
    x = 214,364,229,711,801.22/12,252,021.40
  6. Step 6: Final answer
    x = 17,496,233.70

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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.