Home / 393,504,013.70-590,256,020.55-120,888,340.10

Finding the Fourth Proportional to 393,504,013.70, 590,256,020.55 and 120,888,340.10

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Solution

The fourth proportional to 393,504,013.70, 590,256,020.55 and 120,888,340.10 is: 181,332,510.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,504,013.70 : 590,256,020.55 = 120,888,340.10 : x
  2. Step 2: Convert to fraction form
    393,504,013.70/590,256,020.55 = 120,888,340.10/x
  3. Step 3: Cross multiply
    393,504,013.70x = 590,256,020.55 × 120,888,340.10
  4. Step 4: Simplify right side
    393,504,013.70x = 71,355,070,558,320,976
  5. Step 5: Solve for x
    x = 71,355,070,558,320,976/393,504,013.70
  6. Step 6: Final answer
    x = 181,332,510.15

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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.