Home / 21,424,091.20-32,104,635.80-12,661,350.82

Finding the Fourth Proportional to 21,424,091.20, 32,104,635.80 and 12,661,350.82

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Solution

The fourth proportional to 21,424,091.20, 32,104,635.80 and 12,661,350.82 is: 18,973,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424,091.20 : 32,104,635.80 = 12,661,350.82 : x
  2. Step 2: Convert to fraction form
    21,424,091.20/32,104,635.80 = 12,661,350.82/x
  3. Step 3: Cross multiply
    21,424,091.20x = 32,104,635.80 × 12,661,350.82
  4. Step 4: Simplify right side
    21,424,091.20x = 406,488,056,955,962.69
  5. Step 5: Solve for x
    x = 406,488,056,955,962.69/21,424,091.20
  6. Step 6: Final answer
    x = 18,973,409.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.