Home / 20,238,465.85-27,929,119.61-11,071,108.60

Finding the Fourth Proportional to 20,238,465.85, 27,929,119.61 and 11,071,108.60

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Solution

The fourth proportional to 20,238,465.85, 27,929,119.61 and 11,071,108.60 is: 15,278,149.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238,465.85 : 27,929,119.61 = 11,071,108.60 : x
  2. Step 2: Convert to fraction form
    20,238,465.85/27,929,119.61 = 11,071,108.60/x
  3. Step 3: Cross multiply
    20,238,465.85x = 27,929,119.61 × 11,071,108.60
  4. Step 4: Simplify right side
    20,238,465.85x = 309,206,316,262,554.62
  5. Step 5: Solve for x
    x = 309,206,316,262,554.62/20,238,465.85
  6. Step 6: Final answer
    x = 15,278,149.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.