Home / 28,479,740.66-39,302,230.81-15,426,999.57

Finding the Fourth Proportional to 28,479,740.66, 39,302,230.81 and 15,426,999.57

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Solution

The fourth proportional to 28,479,740.66, 39,302,230.81 and 15,426,999.57 is: 21,289,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,740.66 : 39,302,230.81 = 15,426,999.57 : x
  2. Step 2: Convert to fraction form
    28,479,740.66/39,302,230.81 = 15,426,999.57/x
  3. Step 3: Cross multiply
    28,479,740.66x = 39,302,230.81 × 15,426,999.57
  4. Step 4: Simplify right side
    28,479,740.66x = 606,315,497,805,910.75
  5. Step 5: Solve for x
    x = 606,315,497,805,910.75/28,479,740.66
  6. Step 6: Final answer
    x = 21,289,361.63

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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.