Home / 139,743,536.87-192,846,845.70-81,041,006.67

Finding the Fourth Proportional to 139,743,536.87, 192,846,845.70 and 81,041,006.67

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Solution

The fourth proportional to 139,743,536.87, 192,846,845.70 and 81,041,006.67 is: 111,837,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,743,536.87 : 192,846,845.70 = 81,041,006.67 : x
  2. Step 2: Convert to fraction form
    139,743,536.87/192,846,845.70 = 81,041,006.67/x
  3. Step 3: Cross multiply
    139,743,536.87x = 192,846,845.70 × 81,041,006.67
  4. Step 4: Simplify right side
    139,743,536.87x = 15,628,502,508,662,160
  5. Step 5: Solve for x
    x = 15,628,502,508,662,160/139,743,536.87
  6. Step 6: Final answer
    x = 111,837,032.75

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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.