Home / 20,013,803.73-27,632,606.93-12,678,146.61

Finding the Fourth Proportional to 20,013,803.73, 27,632,606.93 and 12,678,146.61

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Solution

The fourth proportional to 20,013,803.73, 27,632,606.93 and 12,678,146.61 is: 17,504,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013,803.73 : 27,632,606.93 = 12,678,146.61 : x
  2. Step 2: Convert to fraction form
    20,013,803.73/27,632,606.93 = 12,678,146.61/x
  3. Step 3: Cross multiply
    20,013,803.73x = 27,632,606.93 × 12,678,146.61
  4. Step 4: Simplify right side
    20,013,803.73x = 350,330,241,875,042
  5. Step 5: Solve for x
    x = 350,330,241,875,042/20,013,803.73
  6. Step 6: Final answer
    x = 17,504,430.77

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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.