Home / 12,252,001.70-18,378,002.55-8,142,191.30

Finding the Fourth Proportional to 12,252,001.70, 18,378,002.55 and 8,142,191.30

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Solution

The fourth proportional to 12,252,001.70, 18,378,002.55 and 8,142,191.30 is: 12,213,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252,001.70 : 18,378,002.55 = 8,142,191.30 : x
  2. Step 2: Convert to fraction form
    12,252,001.70/18,378,002.55 = 8,142,191.30/x
  3. Step 3: Cross multiply
    12,252,001.70x = 18,378,002.55 × 8,142,191.30
  4. Step 4: Simplify right side
    12,252,001.70x = 149,637,212,473,987.81
  5. Step 5: Solve for x
    x = 149,637,212,473,987.81/12,252,001.70
  6. Step 6: Final answer
    x = 12,213,286.95

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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.