Home / 198,031,250.78-297,046,625.87-75,209,339.42

Finding the Fourth Proportional to 198,031,250.78, 297,046,625.87 and 75,209,339.42

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Solution

The fourth proportional to 198,031,250.78, 297,046,625.87 and 75,209,339.42 is: 112,813,914.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,031,250.78 : 297,046,625.87 = 75,209,339.42 : x
  2. Step 2: Convert to fraction form
    198,031,250.78/297,046,625.87 = 75,209,339.42/x
  3. Step 3: Cross multiply
    198,031,250.78x = 297,046,625.87 × 75,209,339.42
  4. Step 4: Simplify right side
    198,031,250.78x = 22,340,680,507,325,376
  5. Step 5: Solve for x
    x = 22,340,680,507,325,376/198,031,250.78
  6. Step 6: Final answer
    x = 112,813,914.07

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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.