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Finding the Fourth Proportional to 27,205,004.80, 40,713,028.80 and 18,701,948.80

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Solution

The fourth proportional to 27,205,004.80, 40,713,028.80 and 18,701,948.80 is: 27,987,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,205,004.80 : 40,713,028.80 = 18,701,948.80 : x
  2. Step 2: Convert to fraction form
    27,205,004.80/40,713,028.80 = 18,701,948.80/x
  3. Step 3: Cross multiply
    27,205,004.80x = 40,713,028.80 × 18,701,948.80
  4. Step 4: Simplify right side
    27,205,004.80x = 761,412,980,110,525.38
  5. Step 5: Solve for x
    x = 761,412,980,110,525.38/27,205,004.80
  6. Step 6: Final answer
    x = 27,987,974.48

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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.