Home / 168,546,831.30-252,820,246.95-86,551,389.90

Finding the Fourth Proportional to 168,546,831.30, 252,820,246.95 and 86,551,389.90

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Solution

The fourth proportional to 168,546,831.30, 252,820,246.95 and 86,551,389.90 is: 129,827,084.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,546,831.30 : 252,820,246.95 = 86,551,389.90 : x
  2. Step 2: Convert to fraction form
    168,546,831.30/252,820,246.95 = 86,551,389.90/x
  3. Step 3: Cross multiply
    168,546,831.30x = 252,820,246.95 × 86,551,389.90
  4. Step 4: Simplify right side
    168,546,831.30x = 21,881,943,768,383,736
  5. Step 5: Solve for x
    x = 21,881,943,768,383,736/168,546,831.30
  6. Step 6: Final answer
    x = 129,827,084.85

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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.