Home / 139,762,975.20-209,644,462.80-131,259,919.20

Finding the Fourth Proportional to 139,762,975.20, 209,644,462.80 and 131,259,919.20

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Solution

The fourth proportional to 139,762,975.20, 209,644,462.80 and 131,259,919.20 is: 196,889,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,762,975.20 : 209,644,462.80 = 131,259,919.20 : x
  2. Step 2: Convert to fraction form
    139,762,975.20/209,644,462.80 = 131,259,919.20/x
  3. Step 3: Cross multiply
    139,762,975.20x = 209,644,462.80 × 131,259,919.20
  4. Step 4: Simplify right side
    139,762,975.20x = 27,517,915,247,855,408
  5. Step 5: Solve for x
    x = 27,517,915,247,855,408/139,762,975.20
  6. Step 6: Final answer
    x = 196,889,878.80

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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.