Home / 28,385,615.56-39,172,164.54-15,332,874.22

Finding the Fourth Proportional to 28,385,615.56, 39,172,164.54 and 15,332,874.22

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Solution

The fourth proportional to 28,385,615.56, 39,172,164.54 and 15,332,874.22 is: 21,159,374.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,615.56 : 39,172,164.54 = 15,332,874.22 : x
  2. Step 2: Convert to fraction form
    28,385,615.56/39,172,164.54 = 15,332,874.22/x
  3. Step 3: Cross multiply
    28,385,615.56x = 39,172,164.54 × 15,332,874.22
  4. Step 4: Simplify right side
    28,385,615.56x = 600,621,871,816,964.12
  5. Step 5: Solve for x
    x = 600,621,871,816,964.12/28,385,615.56
  6. Step 6: Final answer
    x = 21,159,374.56

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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.