Home / 20,013,802.73-27,632,605.55-12,678,145.61

Finding the Fourth Proportional to 20,013,802.73, 27,632,605.55 and 12,678,145.61

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Solution

The fourth proportional to 20,013,802.73, 27,632,605.55 and 12,678,145.61 is: 17,504,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013,802.73 : 27,632,605.55 = 12,678,145.61 : x
  2. Step 2: Convert to fraction form
    20,013,802.73/27,632,605.55 = 12,678,145.61/x
  3. Step 3: Cross multiply
    20,013,802.73x = 27,632,605.55 × 12,678,145.61
  4. Step 4: Simplify right side
    20,013,802.73x = 350,330,196,640,126.44
  5. Step 5: Solve for x
    x = 350,330,196,640,126.44/20,013,802.73
  6. Step 6: Final answer
    x = 17,504,429.39

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1.5x scale

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.