Home / 139,363,849.92-192,332,885.76-83,611,368.48

Finding the Fourth Proportional to 139,363,849.92, 192,332,885.76 and 83,611,368.48

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Solution

The fourth proportional to 139,363,849.92, 192,332,885.76 and 83,611,368.48 is: 115,390,151.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,363,849.92 : 192,332,885.76 = 83,611,368.48 : x
  2. Step 2: Convert to fraction form
    139,363,849.92/192,332,885.76 = 83,611,368.48/x
  3. Step 3: Cross multiply
    139,363,849.92x = 192,332,885.76 × 83,611,368.48
  4. Step 4: Simplify right side
    139,363,849.92x = 16,081,215,782,101,104
  5. Step 5: Solve for x
    x = 16,081,215,782,101,104/139,363,849.92
  6. Step 6: Final answer
    x = 115,390,151.69

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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.