Home / 139,923,764.11-193,095,465.33-77,199,858.70

Finding the Fourth Proportional to 139,923,764.11, 193,095,465.33 and 77,199,858.70

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Solution

The fourth proportional to 139,923,764.11, 193,095,465.33 and 77,199,858.70 is: 106,536,175.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,923,764.11 : 193,095,465.33 = 77,199,858.70 : x
  2. Step 2: Convert to fraction form
    139,923,764.11/193,095,465.33 = 77,199,858.70/x
  3. Step 3: Cross multiply
    139,923,764.11x = 193,095,465.33 × 77,199,858.70
  4. Step 4: Simplify right side
    139,923,764.11x = 14,906,942,639,086,750
  5. Step 5: Solve for x
    x = 14,906,942,639,086,750/139,923,764.11
  6. Step 6: Final answer
    x = 106,536,175.14

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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.