Home / 85,396,992-128,108,759.04-28,676,567.04

Finding the Fourth Proportional to 85,396,992, 128,108,759.04 and 28,676,567.04

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Solution

The fourth proportional to 85,396,992, 128,108,759.04 and 28,676,567.04 is: 43,019,307.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,396,992 : 128,108,759.04 = 28,676,567.04 : x
  2. Step 2: Convert to fraction form
    85,396,992/128,108,759.04 = 28,676,567.04/x
  3. Step 3: Cross multiply
    85,396,992x = 128,108,759.04 × 28,676,567.04
  4. Step 4: Simplify right side
    85,396,992x = 3,673,719,417,021,766
  5. Step 5: Solve for x
    x = 3,673,719,417,021,766/85,396,992
  6. Step 6: Final answer
    x = 43,019,307.02

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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.