Home / 21,561,623.80-32,342,435.70-21,278,188.60

Finding the Fourth Proportional to 21,561,623.80, 32,342,435.70 and 21,278,188.60

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Solution

The fourth proportional to 21,561,623.80, 32,342,435.70 and 21,278,188.60 is: 31,917,282.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561,623.80 : 32,342,435.70 = 21,278,188.60 : x
  2. Step 2: Convert to fraction form
    21,561,623.80/32,342,435.70 = 21,278,188.60/x
  3. Step 3: Cross multiply
    21,561,623.80x = 32,342,435.70 × 21,278,188.60
  4. Step 4: Simplify right side
    21,561,623.80x = 688,188,446,607,973
  5. Step 5: Solve for x
    x = 688,188,446,607,973/21,561,623.80
  6. Step 6: Final answer
    x = 31,917,282.90

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1.5x scale

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.