Home / 28,773,812.88-39,707,392.52-15,720,790.86

Finding the Fourth Proportional to 28,773,812.88, 39,707,392.52 and 15,720,790.86

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Solution

The fourth proportional to 28,773,812.88, 39,707,392.52 and 15,720,790.86 is: 21,694,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773,812.88 : 39,707,392.52 = 15,720,790.86 : x
  2. Step 2: Convert to fraction form
    28,773,812.88/39,707,392.52 = 15,720,790.86/x
  3. Step 3: Cross multiply
    28,773,812.88x = 39,707,392.52 × 15,720,790.86
  4. Step 4: Simplify right side
    28,773,812.88x = 624,231,613,442,150.38
  5. Step 5: Solve for x
    x = 624,231,613,442,150.38/28,773,812.88
  6. Step 6: Final answer
    x = 21,694,435.01

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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.