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Finding the Fourth Proportional to 14,393,630.40, 21,602,255.40 and 13,921,238.40

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Solution

The fourth proportional to 14,393,630.40, 21,602,255.40 and 13,921,238.40 is: 20,893,279.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393,630.40 : 21,602,255.40 = 13,921,238.40 : x
  2. Step 2: Convert to fraction form
    14,393,630.40/21,602,255.40 = 13,921,238.40/x
  3. Step 3: Cross multiply
    14,393,630.40x = 21,602,255.40 × 13,921,238.40
  4. Step 4: Simplify right side
    14,393,630.40x = 300,730,147,401,087.38
  5. Step 5: Solve for x
    x = 300,730,147,401,087.38/14,393,630.40
  6. Step 6: Final answer
    x = 20,893,279.81

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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.