Home / 12,072,001.05-18,144,584.78-7,987,254.57

Finding the Fourth Proportional to 12,072,001.05, 18,144,584.78 and 7,987,254.57

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Solution

The fourth proportional to 12,072,001.05, 18,144,584.78 and 7,987,254.57 is: 12,005,086.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072,001.05 : 18,144,584.78 = 7,987,254.57 : x
  2. Step 2: Convert to fraction form
    12,072,001.05/18,144,584.78 = 7,987,254.57/x
  3. Step 3: Cross multiply
    12,072,001.05x = 18,144,584.78 × 7,987,254.57
  4. Step 4: Simplify right side
    12,072,001.05x = 144,925,417,664,871.16
  5. Step 5: Solve for x
    x = 144,925,417,664,871.16/12,072,001.05
  6. Step 6: Final answer
    x = 12,005,086.57

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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.