Home / 81,678,000.60-122,517,000.90-52,767,610.20

Finding the Fourth Proportional to 81,678,000.60, 122,517,000.90 and 52,767,610.20

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Solution

The fourth proportional to 81,678,000.60, 122,517,000.90 and 52,767,610.20 is: 79,151,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,678,000.60 : 122,517,000.90 = 52,767,610.20 : x
  2. Step 2: Convert to fraction form
    81,678,000.60/122,517,000.90 = 52,767,610.20/x
  3. Step 3: Cross multiply
    81,678,000.60x = 122,517,000.90 × 52,767,610.20
  4. Step 4: Simplify right side
    81,678,000.60x = 6,464,929,346,364,250
  5. Step 5: Solve for x
    x = 6,464,929,346,364,250/81,678,000.60
  6. Step 6: Final answer
    x = 79,151,415.30

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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.