Home / 82,138,078.80-123,165,600.12-48,069,660.24

Finding the Fourth Proportional to 82,138,078.80, 123,165,600.12 and 48,069,660.24

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Solution

The fourth proportional to 82,138,078.80, 123,165,600.12 and 48,069,660.24 is: 72,080,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,138,078.80 : 123,165,600.12 = 48,069,660.24 : x
  2. Step 2: Convert to fraction form
    82,138,078.80/123,165,600.12 = 48,069,660.24/x
  3. Step 3: Cross multiply
    82,138,078.80x = 123,165,600.12 × 48,069,660.24
  4. Step 4: Simplify right side
    82,138,078.80x = 5,920,528,551,024,104
  5. Step 5: Solve for x
    x = 5,920,528,551,024,104/82,138,078.80
  6. Step 6: Final answer
    x = 72,080,192.74

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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.