Home / 217,554,752.20-326,236,366.78-115,294,831.24

Finding the Fourth Proportional to 217,554,752.20, 326,236,366.78 and 115,294,831.24

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Solution

The fourth proportional to 217,554,752.20, 326,236,366.78 and 115,294,831.24 is: 172,891,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,554,752.20 : 326,236,366.78 = 115,294,831.24 : x
  2. Step 2: Convert to fraction form
    217,554,752.20/326,236,366.78 = 115,294,831.24/x
  3. Step 3: Cross multiply
    217,554,752.20x = 326,236,366.78 × 115,294,831.24
  4. Step 4: Simplify right side
    217,554,752.20x = 37,613,366,852,250,840
  5. Step 5: Solve for x
    x = 37,613,366,852,250,840/217,554,752.20
  6. Step 6: Final answer
    x = 172,891,497.30

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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.