Home / 100,048,348.32-138,071,035.68-55,394,320

Finding the Fourth Proportional to 100,048,348.32, 138,071,035.68 and 55,394,320

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Solution

The fourth proportional to 100,048,348.32, 138,071,035.68 and 55,394,320 is: 76,446,550.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,048,348.32 : 138,071,035.68 = 55,394,320 : x
  2. Step 2: Convert to fraction form
    100,048,348.32/138,071,035.68 = 55,394,320/x
  3. Step 3: Cross multiply
    100,048,348.32x = 138,071,035.68 × 55,394,320
  4. Step 4: Simplify right side
    100,048,348.32x = 7,648,351,133,189,338
  5. Step 5: Solve for x
    x = 7,648,351,133,189,338/100,048,348.32
  6. Step 6: Final answer
    x = 76,446,550.71

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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.