Home / 439,492,005.20-659,342,983.80-132,787,125.20

Finding the Fourth Proportional to 439,492,005.20, 659,342,983.80 and 132,787,125.20

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Solution

The fourth proportional to 439,492,005.20, 659,342,983.80 and 132,787,125.20 is: 199,212,405.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,492,005.20 : 659,342,983.80 = 132,787,125.20 : x
  2. Step 2: Convert to fraction form
    439,492,005.20/659,342,983.80 = 132,787,125.20/x
  3. Step 3: Cross multiply
    439,492,005.20x = 659,342,983.80 × 132,787,125.20
  4. Step 4: Simplify right side
    439,492,005.20x = 87,552,259,339,592,160
  5. Step 5: Solve for x
    x = 87,552,259,339,592,160/439,492,005.20
  6. Step 6: Final answer
    x = 199,212,405.01

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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.