Home / 21,891,619.20-32,837,428.80-21,261,763.20

Finding the Fourth Proportional to 21,891,619.20, 32,837,428.80 and 21,261,763.20

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Solution

The fourth proportional to 21,891,619.20, 32,837,428.80 and 21,261,763.20 is: 31,892,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,891,619.20 : 32,837,428.80 = 21,261,763.20 : x
  2. Step 2: Convert to fraction form
    21,891,619.20/32,837,428.80 = 21,261,763.20/x
  3. Step 3: Cross multiply
    21,891,619.20x = 32,837,428.80 × 21,261,763.20
  4. Step 4: Simplify right side
    21,891,619.20x = 698,181,635,242,460.12
  5. Step 5: Solve for x
    x = 698,181,635,242,460.12/21,891,619.20
  6. Step 6: Final answer
    x = 31,892,644.80

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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.