Home / 21,429,797.76-29,573,439.12-11,640,432.96

Finding the Fourth Proportional to 21,429,797.76, 29,573,439.12 and 11,640,432.96

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Solution

The fourth proportional to 21,429,797.76, 29,573,439.12 and 11,640,432.96 is: 16,063,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429,797.76 : 29,573,439.12 = 11,640,432.96 : x
  2. Step 2: Convert to fraction form
    21,429,797.76/29,573,439.12 = 11,640,432.96/x
  3. Step 3: Cross multiply
    21,429,797.76x = 29,573,439.12 × 11,640,432.96
  4. Step 4: Simplify right side
    21,429,797.76x = 344,247,635,473,001.44
  5. Step 5: Solve for x
    x = 344,247,635,473,001.44/21,429,797.76
  6. Step 6: Final answer
    x = 16,063,970.33

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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.