Home / 90,708,002.40-136,062,003.60-82,771,816.80

Finding the Fourth Proportional to 90,708,002.40, 136,062,003.60 and 82,771,816.80

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Solution

The fourth proportional to 90,708,002.40, 136,062,003.60 and 82,771,816.80 is: 124,157,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,708,002.40 : 136,062,003.60 = 82,771,816.80 : x
  2. Step 2: Convert to fraction form
    90,708,002.40/136,062,003.60 = 82,771,816.80/x
  3. Step 3: Cross multiply
    90,708,002.40x = 136,062,003.60 × 82,771,816.80
  4. Step 4: Simplify right side
    90,708,002.40x = 11,262,099,235,420,140
  5. Step 5: Solve for x
    x = 11,262,099,235,420,140/90,708,002.40
  6. Step 6: Final answer
    x = 124,157,725.20

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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.