Home / 90,989,037.20-136,483,555.80-60,378,035.60

Finding the Fourth Proportional to 90,989,037.20, 136,483,555.80 and 60,378,035.60

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Solution

The fourth proportional to 90,989,037.20, 136,483,555.80 and 60,378,035.60 is: 90,567,053.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989,037.20 : 136,483,555.80 = 60,378,035.60 : x
  2. Step 2: Convert to fraction form
    90,989,037.20/136,483,555.80 = 60,378,035.60/x
  3. Step 3: Cross multiply
    90,989,037.20x = 136,483,555.80 × 60,378,035.60
  4. Step 4: Simplify right side
    90,989,037.20x = 8,240,608,990,906,987
  5. Step 5: Solve for x
    x = 8,240,608,990,906,987/90,989,037.20
  6. Step 6: Final answer
    x = 90,567,053.40

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1.5x scale

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.