Home / 20,773,959.80-31,160,939.70-11,816,007.80

Finding the Fourth Proportional to 20,773,959.80, 31,160,939.70 and 11,816,007.80

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Solution

The fourth proportional to 20,773,959.80, 31,160,939.70 and 11,816,007.80 is: 17,724,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773,959.80 : 31,160,939.70 = 11,816,007.80 : x
  2. Step 2: Convert to fraction form
    20,773,959.80/31,160,939.70 = 11,816,007.80/x
  3. Step 3: Cross multiply
    20,773,959.80x = 31,160,939.70 × 11,816,007.80
  4. Step 4: Simplify right side
    20,773,959.80x = 368,197,906,550,529.69
  5. Step 5: Solve for x
    x = 368,197,906,550,529.69/20,773,959.80
  6. Step 6: Final answer
    x = 17,724,011.70

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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.