Home / 811,722,813,103.75-1,120,178,216,264.10-445,940,711,831.25

Finding the Fourth Proportional to 811,722,813,103.75, 1,120,178,216,264.10 and 445,940,711,831.25

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Solution

The fourth proportional to 811,722,813,103.75, 1,120,178,216,264.10 and 445,940,711,831.25 is: 615,398,585,668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,722,813,103.75 : 1,120,178,216,264.10 = 445,940,711,831.25 : x
  2. Step 2: Convert to fraction form
    811,722,813,103.75/1,120,178,216,264.10 = 445,940,711,831.25/x
  3. Step 3: Cross multiply
    811,722,813,103.75x = 1,120,178,216,264.10 × 445,940,711,831.25
  4. Step 4: Simplify right side
    811,722,813,103.75x = 499,533,071,138,672,680,632,320
  5. Step 5: Solve for x
    x = 499,533,071,138,672,680,632,320/811,722,813,103.75
  6. Step 6: Final answer
    x = 615,398,585,668.22

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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.