Home / 454,229,979.68-681,350,394.56-126,685,564.20

Finding the Fourth Proportional to 454,229,979.68, 681,350,394.56 and 126,685,564.20

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Solution

The fourth proportional to 454,229,979.68, 681,350,394.56 and 126,685,564.20 is: 190,029,859.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,229,979.68 : 681,350,394.56 = 126,685,564.20 : x
  2. Step 2: Convert to fraction form
    454,229,979.68/681,350,394.56 = 126,685,564.20/x
  3. Step 3: Cross multiply
    454,229,979.68x = 681,350,394.56 × 126,685,564.20
  4. Step 4: Simplify right side
    454,229,979.68x = 86,317,259,152,726,208
  5. Step 5: Solve for x
    x = 86,317,259,152,726,208/454,229,979.68
  6. Step 6: Final answer
    x = 190,029,859.35

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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.