Home / 90,989,034.20-136,483,551.30-60,378,032.60

Finding the Fourth Proportional to 90,989,034.20, 136,483,551.30 and 60,378,032.60

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Solution

The fourth proportional to 90,989,034.20, 136,483,551.30 and 60,378,032.60 is: 90,567,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989,034.20 : 136,483,551.30 = 60,378,032.60 : x
  2. Step 2: Convert to fraction form
    90,989,034.20/136,483,551.30 = 60,378,032.60/x
  3. Step 3: Cross multiply
    90,989,034.20x = 136,483,551.30 × 60,378,032.60
  4. Step 4: Simplify right side
    90,989,034.20x = 8,240,608,309,755,173
  5. Step 5: Solve for x
    x = 8,240,608,309,755,173/90,989,034.20
  6. Step 6: Final answer
    x = 90,567,048.90

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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.