Home / 139,363,863.92-192,332,905.08-83,611,382.48

Finding the Fourth Proportional to 139,363,863.92, 192,332,905.08 and 83,611,382.48

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Solution

The fourth proportional to 139,363,863.92, 192,332,905.08 and 83,611,382.48 is: 115,390,171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,363,863.92 : 192,332,905.08 = 83,611,382.48 : x
  2. Step 2: Convert to fraction form
    139,363,863.92/192,332,905.08 = 83,611,382.48/x
  3. Step 3: Cross multiply
    139,363,863.92x = 192,332,905.08 × 83,611,382.48
  4. Step 4: Simplify right side
    139,363,863.92x = 16,081,220,090,133,416
  5. Step 5: Solve for x
    x = 16,081,220,090,133,416/139,363,863.92
  6. Step 6: Final answer
    x = 115,390,171.01

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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.