Home / 28,988,386.72-43,481,442.03-9,819,143.09

Finding the Fourth Proportional to 28,988,386.72, 43,481,442.03 and 9,819,143.09

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Solution

The fourth proportional to 28,988,386.72, 43,481,442.03 and 9,819,143.09 is: 14,728,329.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988,386.72 : 43,481,442.03 = 9,819,143.09 : x
  2. Step 2: Convert to fraction form
    28,988,386.72/43,481,442.03 = 9,819,143.09/x
  3. Step 3: Cross multiply
    28,988,386.72x = 43,481,442.03 × 9,819,143.09
  4. Step 4: Simplify right side
    28,988,386.72x = 426,950,500,960,936.44
  5. Step 5: Solve for x
    x = 426,950,500,960,936.44/28,988,386.72
  6. Step 6: Final answer
    x = 14,728,329.15

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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.