Home / 21,520,424.78-29,697,944.43-11,730,654.17

Finding the Fourth Proportional to 21,520,424.78, 29,697,944.43 and 11,730,654.17

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Solution

The fourth proportional to 21,520,424.78, 29,697,944.43 and 11,730,654.17 is: 16,188,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520,424.78 : 29,697,944.43 = 11,730,654.17 : x
  2. Step 2: Convert to fraction form
    21,520,424.78/29,697,944.43 = 11,730,654.17/x
  3. Step 3: Cross multiply
    21,520,424.78x = 29,697,944.43 × 11,730,654.17
  4. Step 4: Simplify right side
    21,520,424.78x = 348,376,315,668,207.75
  5. Step 5: Solve for x
    x = 348,376,315,668,207.75/21,520,424.78
  6. Step 6: Final answer
    x = 16,188,170.97

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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.