Home / 18,811,889.01-28,212,710.72-5,161,798.89

Finding the Fourth Proportional to 18,811,889.01, 28,212,710.72 and 5,161,798.89

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Solution

The fourth proportional to 18,811,889.01, 28,212,710.72 and 5,161,798.89 is: 7,741,292.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811,889.01 : 28,212,710.72 = 5,161,798.89 : x
  2. Step 2: Convert to fraction form
    18,811,889.01/28,212,710.72 = 5,161,798.89/x
  3. Step 3: Cross multiply
    18,811,889.01x = 28,212,710.72 × 5,161,798.89
  4. Step 4: Simplify right side
    18,811,889.01x = 145,628,338,852,578.09
  5. Step 5: Solve for x
    x = 145,628,338,852,578.09/18,811,889.01
  6. Step 6: Final answer
    x = 7,741,292.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.