Home / 8,171,837.70-12,257,756.55-7,290,039.30

Finding the Fourth Proportional to 8,171,837.70, 12,257,756.55 and 7,290,039.30

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Solution

The fourth proportional to 8,171,837.70, 12,257,756.55 and 7,290,039.30 is: 10,935,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171,837.70 : 12,257,756.55 = 7,290,039.30 : x
  2. Step 2: Convert to fraction form
    8,171,837.70/12,257,756.55 = 7,290,039.30/x
  3. Step 3: Cross multiply
    8,171,837.70x = 12,257,756.55 × 7,290,039.30
  4. Step 4: Simplify right side
    8,171,837.70x = 89,359,526,979,332.42
  5. Step 5: Solve for x
    x = 89,359,526,979,332.42/8,171,837.70
  6. Step 6: Final answer
    x = 10,935,058.95

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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.