Home / 139,923,765.11-193,095,466.71-77,199,859.70

Finding the Fourth Proportional to 139,923,765.11, 193,095,466.71 and 77,199,859.70

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Solution

The fourth proportional to 139,923,765.11, 193,095,466.71 and 77,199,859.70 is: 106,536,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,923,765.11 : 193,095,466.71 = 77,199,859.70 : x
  2. Step 2: Convert to fraction form
    139,923,765.11/193,095,466.71 = 77,199,859.70/x
  3. Step 3: Cross multiply
    139,923,765.11x = 193,095,466.71 × 77,199,859.70
  4. Step 4: Simplify right side
    139,923,765.11x = 14,906,942,938,718,022
  5. Step 5: Solve for x
    x = 14,906,942,938,718,022/139,923,765.11
  6. Step 6: Final answer
    x = 106,536,176.52

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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.