Home / 86,100,667.89-129,151,484.06-21,404,470.61

Finding the Fourth Proportional to 86,100,667.89, 129,151,484.06 and 21,404,470.61

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Solution

The fourth proportional to 86,100,667.89, 129,151,484.06 and 21,404,470.61 is: 32,106,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,100,667.89 : 129,151,484.06 = 21,404,470.61 : x
  2. Step 2: Convert to fraction form
    86,100,667.89/129,151,484.06 = 21,404,470.61/x
  3. Step 3: Cross multiply
    86,100,667.89x = 129,151,484.06 × 21,404,470.61
  4. Step 4: Simplify right side
    86,100,667.89x = 2,764,419,144,047,374
  5. Step 5: Solve for x
    x = 2,764,419,144,047,374/86,100,667.89
  6. Step 6: Final answer
    x = 32,106,825.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.