Home / 21,167,354.80-31,755,179.40-9,036,794.80

Finding the Fourth Proportional to 21,167,354.80, 31,755,179.40 and 9,036,794.80

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Solution

The fourth proportional to 21,167,354.80, 31,755,179.40 and 9,036,794.80 is: 13,556,962.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,354.80 : 31,755,179.40 = 9,036,794.80 : x
  2. Step 2: Convert to fraction form
    21,167,354.80/31,755,179.40 = 9,036,794.80/x
  3. Step 3: Cross multiply
    21,167,354.80x = 31,755,179.40 × 9,036,794.80
  4. Step 4: Simplify right side
    21,167,354.80x = 286,965,040,074,987.12
  5. Step 5: Solve for x
    x = 286,965,040,074,987.12/21,167,354.80
  6. Step 6: Final answer
    x = 13,556,962.73

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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.