Home / 633,084,831.73-873,705,535.20-398,336,713.21

Finding the Fourth Proportional to 633,084,831.73, 873,705,535.20 and 398,336,713.21

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Solution

The fourth proportional to 633,084,831.73, 873,705,535.20 and 398,336,713.21 is: 549,735,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,084,831.73 : 873,705,535.20 = 398,336,713.21 : x
  2. Step 2: Convert to fraction form
    633,084,831.73/873,705,535.20 = 398,336,713.21/x
  3. Step 3: Cross multiply
    633,084,831.73x = 873,705,535.20 × 398,336,713.21
  4. Step 4: Simplify right side
    633,084,831.73x = 348,028,991,204,951,936
  5. Step 5: Solve for x
    x = 348,028,991,204,951,936/633,084,831.73
  6. Step 6: Final answer
    x = 549,735,159.91

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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.