Home / 28,530,078.16-39,368,186.30-15,971,820.48

Finding the Fourth Proportional to 28,530,078.16, 39,368,186.30 and 15,971,820.48

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Solution

The fourth proportional to 28,530,078.16, 39,368,186.30 and 15,971,820.48 is: 22,039,252.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530,078.16 : 39,368,186.30 = 15,971,820.48 : x
  2. Step 2: Convert to fraction form
    28,530,078.16/39,368,186.30 = 15,971,820.48/x
  3. Step 3: Cross multiply
    28,530,078.16x = 39,368,186.30 × 15,971,820.48
  4. Step 4: Simplify right side
    28,530,078.16x = 628,781,604,206,795.38
  5. Step 5: Solve for x
    x = 628,781,604,206,795.38/28,530,078.16
  6. Step 6: Final answer
    x = 22,039,252.77

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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.