Home / 20,650,486.72-28,498,363.04-11,358,449.76

Finding the Fourth Proportional to 20,650,486.72, 28,498,363.04 and 11,358,449.76

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Solution

The fourth proportional to 20,650,486.72, 28,498,363.04 and 11,358,449.76 is: 15,675,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650,486.72 : 28,498,363.04 = 11,358,449.76 : x
  2. Step 2: Convert to fraction form
    20,650,486.72/28,498,363.04 = 11,358,449.76/x
  3. Step 3: Cross multiply
    20,650,486.72x = 28,498,363.04 × 11,358,449.76
  4. Step 4: Simplify right side
    20,650,486.72x = 323,697,224,832,080.88
  5. Step 5: Solve for x
    x = 323,697,224,832,080.88/20,650,486.72
  6. Step 6: Final answer
    x = 15,675,040.94

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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.