Home / 15,588,180.81-21,510,821.80-8,618,455.42

Finding the Fourth Proportional to 15,588,180.81, 21,510,821.80 and 8,618,455.42

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Solution

The fourth proportional to 15,588,180.81, 21,510,821.80 and 8,618,455.42 is: 11,892,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,588,180.81 : 21,510,821.80 = 8,618,455.42 : x
  2. Step 2: Convert to fraction form
    15,588,180.81/21,510,821.80 = 8,618,455.42/x
  3. Step 3: Cross multiply
    15,588,180.81x = 21,510,821.80 × 8,618,455.42
  4. Step 4: Simplify right side
    15,588,180.81x = 185,390,058,687,860.19
  5. Step 5: Solve for x
    x = 185,390,058,687,860.19/15,588,180.81
  6. Step 6: Final answer
    x = 11,892,988.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.