Home / 21,032,536.80-31,548,805.20-9,695,128.80

Finding the Fourth Proportional to 21,032,536.80, 31,548,805.20 and 9,695,128.80

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Solution

The fourth proportional to 21,032,536.80, 31,548,805.20 and 9,695,128.80 is: 14,542,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,536.80 : 31,548,805.20 = 9,695,128.80 : x
  2. Step 2: Convert to fraction form
    21,032,536.80/31,548,805.20 = 9,695,128.80/x
  3. Step 3: Cross multiply
    21,032,536.80x = 31,548,805.20 × 9,695,128.80
  4. Step 4: Simplify right side
    21,032,536.80x = 305,869,729,900,109.75
  5. Step 5: Solve for x
    x = 305,869,729,900,109.75/21,032,536.80
  6. Step 6: Final answer
    x = 14,542,693.20

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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.