Home / 82,135,430.20-123,203,145.30-49,823,817.40

Finding the Fourth Proportional to 82,135,430.20, 123,203,145.30 and 49,823,817.40

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Solution

The fourth proportional to 82,135,430.20, 123,203,145.30 and 49,823,817.40 is: 74,735,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,135,430.20 : 123,203,145.30 = 49,823,817.40 : x
  2. Step 2: Convert to fraction form
    82,135,430.20/123,203,145.30 = 49,823,817.40/x
  3. Step 3: Cross multiply
    82,135,430.20x = 123,203,145.30 × 49,823,817.40
  4. Step 4: Simplify right side
    82,135,430.20x = 6,138,451,014,532,868
  5. Step 5: Solve for x
    x = 6,138,451,014,532,868/82,135,430.20
  6. Step 6: Final answer
    x = 74,735,726.10

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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.