Home / 21,791,515-30,073,655.79-12,001,956.94

Finding the Fourth Proportional to 21,791,515, 30,073,655.79 and 12,001,956.94

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Solution

The fourth proportional to 21,791,515, 30,073,655.79 and 12,001,956.94 is: 16,563,452.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,791,515 : 30,073,655.79 = 12,001,956.94 : x
  2. Step 2: Convert to fraction form
    21,791,515/30,073,655.79 = 12,001,956.94/x
  3. Step 3: Cross multiply
    21,791,515x = 30,073,655.79 × 12,001,956.94
  4. Step 4: Simplify right side
    21,791,515x = 360,942,721,819,961.62
  5. Step 5: Solve for x
    x = 360,942,721,819,961.62/21,791,515
  6. Step 6: Final answer
    x = 16,563,452.42

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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.