Home / 13,857,381.76-20,775,476.57-8,391,286.93

Finding the Fourth Proportional to 13,857,381.76, 20,775,476.57 and 8,391,286.93

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Solution

The fourth proportional to 13,857,381.76, 20,775,476.57 and 8,391,286.93 is: 12,580,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857,381.76 : 20,775,476.57 = 8,391,286.93 : x
  2. Step 2: Convert to fraction form
    13,857,381.76/20,775,476.57 = 8,391,286.93/x
  3. Step 3: Cross multiply
    13,857,381.76x = 20,775,476.57 × 8,391,286.93
  4. Step 4: Simplify right side
    13,857,381.76x = 174,332,985,006,362.22
  5. Step 5: Solve for x
    x = 174,332,985,006,362.22/13,857,381.76
  6. Step 6: Final answer
    x = 12,580,513.98

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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.