Home / 439,492,003.70-659,342,981.55-132,787,123.70

Finding the Fourth Proportional to 439,492,003.70, 659,342,981.55 and 132,787,123.70

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Solution

The fourth proportional to 439,492,003.70, 659,342,981.55 and 132,787,123.70 is: 199,212,402.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,492,003.70 : 659,342,981.55 = 132,787,123.70 : x
  2. Step 2: Convert to fraction form
    439,492,003.70/659,342,981.55 = 132,787,123.70/x
  3. Step 3: Cross multiply
    439,492,003.70x = 659,342,981.55 × 132,787,123.70
  4. Step 4: Simplify right side
    439,492,003.70x = 87,552,258,051,806,656
  5. Step 5: Solve for x
    x = 87,552,258,051,806,656/439,492,003.70
  6. Step 6: Final answer
    x = 199,212,402.76

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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.