Home / 168,546,912.30-252,820,368.45-86,551,470.90

Finding the Fourth Proportional to 168,546,912.30, 252,820,368.45 and 86,551,470.90

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Solution

The fourth proportional to 168,546,912.30, 252,820,368.45 and 86,551,470.90 is: 129,827,206.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,546,912.30 : 252,820,368.45 = 86,551,470.90 : x
  2. Step 2: Convert to fraction form
    168,546,912.30/252,820,368.45 = 86,551,470.90/x
  3. Step 3: Cross multiply
    168,546,912.30x = 252,820,368.45 × 86,551,470.90
  4. Step 4: Simplify right side
    168,546,912.30x = 21,881,974,762,827,452
  5. Step 5: Solve for x
    x = 21,881,974,762,827,452/168,546,912.30
  6. Step 6: Final answer
    x = 129,827,206.35

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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.