Home / 82,572,891.20-123,855,400.20-27,980,122.40

Finding the Fourth Proportional to 82,572,891.20, 123,855,400.20 and 27,980,122.40

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Solution

The fourth proportional to 82,572,891.20, 123,855,400.20 and 27,980,122.40 is: 41,968,849.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,572,891.20 : 123,855,400.20 = 27,980,122.40 : x
  2. Step 2: Convert to fraction form
    82,572,891.20/123,855,400.20 = 27,980,122.40/x
  3. Step 3: Cross multiply
    82,572,891.20x = 123,855,400.20 × 27,980,122.40
  4. Step 4: Simplify right side
    82,572,891.20x = 3,465,489,257,496,984.50
  5. Step 5: Solve for x
    x = 3,465,489,257,496,984.50/82,572,891.20
  6. Step 6: Final answer
    x = 41,968,849.67

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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.