Home / 21,361,816.42-29,479,188.55-11,572,451.76

Finding the Fourth Proportional to 21,361,816.42, 29,479,188.55 and 11,572,451.76

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Solution

The fourth proportional to 21,361,816.42, 29,479,188.55 and 11,572,451.76 is: 15,969,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361,816.42 : 29,479,188.55 = 11,572,451.76 : x
  2. Step 2: Convert to fraction form
    21,361,816.42/29,479,188.55 = 11,572,451.76/x
  3. Step 3: Cross multiply
    21,361,816.42x = 29,479,188.55 × 11,572,451.76
  4. Step 4: Simplify right side
    21,361,816.42x = 341,146,487,480,667.88
  5. Step 5: Solve for x
    x = 341,146,487,480,667.88/21,361,816.42
  6. Step 6: Final answer
    x = 15,969,919.45

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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.