Home / 139,363,853.92-192,332,891.28-83,611,372.48

Finding the Fourth Proportional to 139,363,853.92, 192,332,891.28 and 83,611,372.48

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Solution

The fourth proportional to 139,363,853.92, 192,332,891.28 and 83,611,372.48 is: 115,390,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,363,853.92 : 192,332,891.28 = 83,611,372.48 : x
  2. Step 2: Convert to fraction form
    139,363,853.92/192,332,891.28 = 83,611,372.48/x
  3. Step 3: Cross multiply
    139,363,853.92x = 192,332,891.28 × 83,611,372.48
  4. Step 4: Simplify right side
    139,363,853.92x = 16,081,217,012,967,424
  5. Step 5: Solve for x
    x = 16,081,217,012,967,424/139,363,853.92
  6. Step 6: Final answer
    x = 115,390,157.21

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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.