Home / 465,928,786.74-642,995,183.80-257,098,377.54

Finding the Fourth Proportional to 465,928,786.74, 642,995,183.80 and 257,098,377.54

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Solution

The fourth proportional to 465,928,786.74, 642,995,183.80 and 257,098,377.54 is: 354,803,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,928,786.74 : 642,995,183.80 = 257,098,377.54 : x
  2. Step 2: Convert to fraction form
    465,928,786.74/642,995,183.80 = 257,098,377.54/x
  3. Step 3: Cross multiply
    465,928,786.74x = 642,995,183.80 × 257,098,377.54
  4. Step 4: Simplify right side
    465,928,786.74x = 165,313,018,521,014,080
  5. Step 5: Solve for x
    x = 165,313,018,521,014,080/465,928,786.74
  6. Step 6: Final answer
    x = 354,803,187.15

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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.