Home / 168,331,432.88-252,273,929.52-86,447,003.60

Finding the Fourth Proportional to 168,331,432.88, 252,273,929.52 and 86,447,003.60

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Solution

The fourth proportional to 168,331,432.88, 252,273,929.52 and 86,447,003.60 is: 129,555,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,331,432.88 : 252,273,929.52 = 86,447,003.60 : x
  2. Step 2: Convert to fraction form
    168,331,432.88/252,273,929.52 = 86,447,003.60/x
  3. Step 3: Cross multiply
    168,331,432.88x = 252,273,929.52 × 86,447,003.60
  4. Step 4: Simplify right side
    168,331,432.88x = 21,808,325,293,401,584
  5. Step 5: Solve for x
    x = 21,808,325,293,401,584/168,331,432.88
  6. Step 6: Final answer
    x = 129,555,870.35

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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.