Home / 68,723,578-103,085,989.08-20,854,522

Finding the Fourth Proportional to 68,723,578, 103,085,989.08 and 20,854,522

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Solution

The fourth proportional to 68,723,578, 103,085,989.08 and 20,854,522 is: 31,281,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,723,578 : 103,085,989.08 = 20,854,522 : x
  2. Step 2: Convert to fraction form
    68,723,578/103,085,989.08 = 20,854,522/x
  3. Step 3: Cross multiply
    68,723,578x = 103,085,989.08 × 20,854,522
  4. Step 4: Simplify right side
    68,723,578x = 2,149,809,027,160,619.75
  5. Step 5: Solve for x
    x = 2,149,809,027,160,619.75/68,723,578
  6. Step 6: Final answer
    x = 31,281,971.77

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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.