Home / 28,773,812.63-39,707,392.18-15,720,790.61

Finding the Fourth Proportional to 28,773,812.63, 39,707,392.18 and 15,720,790.61

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Solution

The fourth proportional to 28,773,812.63, 39,707,392.18 and 15,720,790.61 is: 21,694,434.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773,812.63 : 39,707,392.18 = 15,720,790.61 : x
  2. Step 2: Convert to fraction form
    28,773,812.63/39,707,392.18 = 15,720,790.61/x
  3. Step 3: Cross multiply
    28,773,812.63x = 39,707,392.18 × 15,720,790.61
  4. Step 4: Simplify right side
    28,773,812.63x = 624,231,598,091,629.50
  5. Step 5: Solve for x
    x = 624,231,598,091,629.50/28,773,812.63
  6. Step 6: Final answer
    x = 21,694,434.66

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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.