Home / 28,678,959.62-39,576,464.43-15,626,325.86

Finding the Fourth Proportional to 28,678,959.62, 39,576,464.43 and 15,626,325.86

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Solution

The fourth proportional to 28,678,959.62, 39,576,464.43 and 15,626,325.86 is: 21,564,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678,959.62 : 39,576,464.43 = 15,626,325.86 : x
  2. Step 2: Convert to fraction form
    28,678,959.62/39,576,464.43 = 15,626,325.86/x
  3. Step 3: Cross multiply
    28,678,959.62x = 39,576,464.43 × 15,626,325.86
  4. Step 4: Simplify right side
    28,678,959.62x = 618,434,729,569,879.12
  5. Step 5: Solve for x
    x = 618,434,729,569,879.12/28,678,959.62
  6. Step 6: Final answer
    x = 21,564,057.34

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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.