Home / 20,832,148.79-28,758,334.13-13,874,405.12

Finding the Fourth Proportional to 20,832,148.79, 28,758,334.13 and 13,874,405.12

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Solution

The fourth proportional to 20,832,148.79, 28,758,334.13 and 13,874,405.12 is: 19,153,318.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832,148.79 : 28,758,334.13 = 13,874,405.12 : x
  2. Step 2: Convert to fraction form
    20,832,148.79/28,758,334.13 = 13,874,405.12/x
  3. Step 3: Cross multiply
    20,832,148.79x = 28,758,334.13 × 13,874,405.12
  4. Step 4: Simplify right side
    20,832,148.79x = 399,004,778,295,942.69
  5. Step 5: Solve for x
    x = 399,004,778,295,942.69/20,832,148.79
  6. Step 6: Final answer
    x = 19,153,318.38

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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.