Home / 139,419,003.20-192,400,696.32-77,539,366.40

Finding the Fourth Proportional to 139,419,003.20, 192,400,696.32 and 77,539,366.40

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Solution

The fourth proportional to 139,419,003.20, 192,400,696.32 and 77,539,366.40 is: 107,005,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,419,003.20 : 192,400,696.32 = 77,539,366.40 : x
  2. Step 2: Convert to fraction form
    139,419,003.20/192,400,696.32 = 77,539,366.40/x
  3. Step 3: Cross multiply
    139,419,003.20x = 192,400,696.32 × 77,539,366.40
  4. Step 4: Simplify right side
    139,419,003.20x = 14,918,628,087,571,612
  5. Step 5: Solve for x
    x = 14,918,628,087,571,612/139,419,003.20
  6. Step 6: Final answer
    x = 107,005,700.41

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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.