Home / 13,694,307.82-20,541,695.01-5,178,654.70

Finding the Fourth Proportional to 13,694,307.82, 20,541,695.01 and 5,178,654.70

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Solution

The fourth proportional to 13,694,307.82, 20,541,695.01 and 5,178,654.70 is: 7,768,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694,307.82 : 20,541,695.01 = 5,178,654.70 : x
  2. Step 2: Convert to fraction form
    13,694,307.82/20,541,695.01 = 5,178,654.70/x
  3. Step 3: Cross multiply
    13,694,307.82x = 20,541,695.01 × 5,178,654.70
  4. Step 4: Simplify right side
    13,694,307.82x = 106,378,345,409,503.06
  5. Step 5: Solve for x
    x = 106,378,345,409,503.06/13,694,307.82
  6. Step 6: Final answer
    x = 7,768,070.27

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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.