Home / 258,189,881.79-356,291,664.59-140,712,694.55

Finding the Fourth Proportional to 258,189,881.79, 356,291,664.59 and 140,712,694.55

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Solution

The fourth proportional to 258,189,881.79, 356,291,664.59 and 140,712,694.55 is: 194,177,865.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,189,881.79 : 356,291,664.59 = 140,712,694.55 : x
  2. Step 2: Convert to fraction form
    258,189,881.79/356,291,664.59 = 140,712,694.55/x
  3. Step 3: Cross multiply
    258,189,881.79x = 356,291,664.59 × 140,712,694.55
  4. Step 4: Simplify right side
    258,189,881.79x = 50,134,760,170,163,720
  5. Step 5: Solve for x
    x = 50,134,760,170,163,720/258,189,881.79
  6. Step 6: Final answer
    x = 194,177,865.62

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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.