Home / 28,161,170.89-42,259,526.01-11,987,096.36

Finding the Fourth Proportional to 28,161,170.89, 42,259,526.01 and 11,987,096.36

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Solution

The fourth proportional to 28,161,170.89, 42,259,526.01 and 11,987,096.36 is: 17,988,208.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,170.89 : 42,259,526.01 = 11,987,096.36 : x
  2. Step 2: Convert to fraction form
    28,161,170.89/42,259,526.01 = 11,987,096.36/x
  3. Step 3: Cross multiply
    28,161,170.89x = 42,259,526.01 × 11,987,096.36
  4. Step 4: Simplify right side
    28,161,170.89x = 506,569,010,198,498.69
  5. Step 5: Solve for x
    x = 506,569,010,198,498.69/28,161,170.89
  6. Step 6: Final answer
    x = 17,988,208.38

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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.