Home / 409,032,447,229.80-613,548,670,844.70-381,138,172,021.80

Finding the Fourth Proportional to 409,032,447,229.80, 613,548,670,844.70 and 381,138,172,021.80

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Solution

The fourth proportional to 409,032,447,229.80, 613,548,670,844.70 and 381,138,172,021.80 is: 571,707,258,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,032,447,229.80 : 613,548,670,844.70 = 381,138,172,021.80 : x
  2. Step 2: Convert to fraction form
    409,032,447,229.80/613,548,670,844.70 = 381,138,172,021.80/x
  3. Step 3: Cross multiply
    409,032,447,229.80x = 613,548,670,844.70 × 381,138,172,021.80
  4. Step 4: Simplify right side
    409,032,447,229.80x = 233,846,818,852,153,986,121,728
  5. Step 5: Solve for x
    x = 233,846,818,852,153,986,121,728/409,032,447,229.80
  6. Step 6: Final answer
    x = 571,707,258,032.70

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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.