Home / 26,285,429.20-39,428,143.80-18,632,678.80

Finding the Fourth Proportional to 26,285,429.20, 39,428,143.80 and 18,632,678.80

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Solution

The fourth proportional to 26,285,429.20, 39,428,143.80 and 18,632,678.80 is: 27,949,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,285,429.20 : 39,428,143.80 = 18,632,678.80 : x
  2. Step 2: Convert to fraction form
    26,285,429.20/39,428,143.80 = 18,632,678.80/x
  3. Step 3: Cross multiply
    26,285,429.20x = 39,428,143.80 × 18,632,678.80
  4. Step 4: Simplify right side
    26,285,429.20x = 734,651,939,105,611.38
  5. Step 5: Solve for x
    x = 734,651,939,105,611.38/26,285,429.20
  6. Step 6: Final answer
    x = 27,949,018.20

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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.