Home / 139,416,209.87-192,393,307.85-76,690,960.59

Finding the Fourth Proportional to 139,416,209.87, 192,393,307.85 and 76,690,960.59

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Solution

The fourth proportional to 139,416,209.87, 192,393,307.85 and 76,690,960.59 is: 105,832,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,416,209.87 : 192,393,307.85 = 76,690,960.59 : x
  2. Step 2: Convert to fraction form
    139,416,209.87/192,393,307.85 = 76,690,960.59/x
  3. Step 3: Cross multiply
    139,416,209.87x = 192,393,307.85 × 76,690,960.59
  4. Step 4: Simplify right side
    139,416,209.87x = 14,754,827,589,720,634
  5. Step 5: Solve for x
    x = 14,754,827,589,720,634/139,416,209.87
  6. Step 6: Final answer
    x = 105,832,941.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.