Home / 376,485,760.80-519,562,966.14-209,229,072.21

Finding the Fourth Proportional to 376,485,760.80, 519,562,966.14 and 209,229,072.21

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Solution

The fourth proportional to 376,485,760.80, 519,562,966.14 and 209,229,072.21 is: 288,743,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,485,760.80 : 519,562,966.14 = 209,229,072.21 : x
  2. Step 2: Convert to fraction form
    376,485,760.80/519,562,966.14 = 209,229,072.21/x
  3. Step 3: Cross multiply
    376,485,760.80x = 519,562,966.14 × 209,229,072.21
  4. Step 4: Simplify right side
    376,485,760.80x = 108,707,677,360,147,840
  5. Step 5: Solve for x
    x = 108,707,677,360,147,840/376,485,760.80
  6. Step 6: Final answer
    x = 288,743,131.03

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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.