Home / 90,758,851.20-136,150,718.40-30,168,259.20

Finding the Fourth Proportional to 90,758,851.20, 136,150,718.40 and 30,168,259.20

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Solution

The fourth proportional to 90,758,851.20, 136,150,718.40 and 30,168,259.20 is: 45,256,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,758,851.20 : 136,150,718.40 = 30,168,259.20 : x
  2. Step 2: Convert to fraction form
    90,758,851.20/136,150,718.40 = 30,168,259.20/x
  3. Step 3: Cross multiply
    90,758,851.20x = 136,150,718.40 × 30,168,259.20
  4. Step 4: Simplify right side
    90,758,851.20x = 4,107,430,162,957,409.50
  5. Step 5: Solve for x
    x = 4,107,430,162,957,409.50/90,758,851.20
  6. Step 6: Final answer
    x = 45,256,524.39

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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.