Home / 28,479,740.90-39,302,231.15-15,426,999.82

Finding the Fourth Proportional to 28,479,740.90, 39,302,231.15 and 15,426,999.82

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Solution

The fourth proportional to 28,479,740.90, 39,302,231.15 and 15,426,999.82 is: 21,289,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,740.90 : 39,302,231.15 = 15,426,999.82 : x
  2. Step 2: Convert to fraction form
    28,479,740.90/39,302,231.15 = 15,426,999.82/x
  3. Step 3: Cross multiply
    28,479,740.90x = 39,302,231.15 × 15,426,999.82
  4. Step 4: Simplify right side
    28,479,740.90x = 606,315,512,816,960.38
  5. Step 5: Solve for x
    x = 606,315,512,816,960.38/28,479,740.90
  6. Step 6: Final answer
    x = 21,289,361.97

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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.