Home / 20,013,802.98-27,632,605.90-12,678,145.86

Finding the Fourth Proportional to 20,013,802.98, 27,632,605.90 and 12,678,145.86

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Solution

The fourth proportional to 20,013,802.98, 27,632,605.90 and 12,678,145.86 is: 17,504,429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013,802.98 : 27,632,605.90 = 12,678,145.86 : x
  2. Step 2: Convert to fraction form
    20,013,802.98/27,632,605.90 = 12,678,145.86/x
  3. Step 3: Cross multiply
    20,013,802.98x = 27,632,605.90 × 12,678,145.86
  4. Step 4: Simplify right side
    20,013,802.98x = 350,330,207,922,238.19
  5. Step 5: Solve for x
    x = 350,330,207,922,238.19/20,013,802.98
  6. Step 6: Final answer
    x = 17,504,429.74

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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.