Home / 20,109,856.72-27,754,473-11,290,239.76

Finding the Fourth Proportional to 20,109,856.72, 27,754,473 and 11,290,239.76

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Solution

The fourth proportional to 20,109,856.72, 27,754,473 and 11,290,239.76 is: 15,582,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109,856.72 : 27,754,473 = 11,290,239.76 : x
  2. Step 2: Convert to fraction form
    20,109,856.72/27,754,473 = 11,290,239.76/x
  3. Step 3: Cross multiply
    20,109,856.72x = 27,754,473 × 11,290,239.76
  4. Step 4: Simplify right side
    20,109,856.72x = 313,354,654,582,446.50
  5. Step 5: Solve for x
    x = 313,354,654,582,446.50/20,109,856.72
  6. Step 6: Final answer
    x = 15,582,142.58

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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.