Home / 168,546,911.80-252,820,367.70-86,551,470.40

Finding the Fourth Proportional to 168,546,911.80, 252,820,367.70 and 86,551,470.40

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Solution

The fourth proportional to 168,546,911.80, 252,820,367.70 and 86,551,470.40 is: 129,827,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,546,911.80 : 252,820,367.70 = 86,551,470.40 : x
  2. Step 2: Convert to fraction form
    168,546,911.80/252,820,367.70 = 86,551,470.40/x
  3. Step 3: Cross multiply
    168,546,911.80x = 252,820,367.70 × 86,551,470.40
  4. Step 4: Simplify right side
    168,546,911.80x = 21,881,974,571,503,668
  5. Step 5: Solve for x
    x = 21,881,974,571,503,668/168,546,911.80
  6. Step 6: Final answer
    x = 129,827,205.60

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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.