Home / 268,663,615.20-402,995,422.80-86,910,793.20

Finding the Fourth Proportional to 268,663,615.20, 402,995,422.80 and 86,910,793.20

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Solution

The fourth proportional to 268,663,615.20, 402,995,422.80 and 86,910,793.20 is: 130,366,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,663,615.20 : 402,995,422.80 = 86,910,793.20 : x
  2. Step 2: Convert to fraction form
    268,663,615.20/402,995,422.80 = 86,910,793.20/x
  3. Step 3: Cross multiply
    268,663,615.20x = 402,995,422.80 × 86,910,793.20
  4. Step 4: Simplify right side
    268,663,615.20x = 35,024,651,851,517,368
  5. Step 5: Solve for x
    x = 35,024,651,851,517,368/268,663,615.20
  6. Step 6: Final answer
    x = 130,366,189.80

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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.