Home / 376,485,761.55-519,562,967.18-209,229,072.96

Finding the Fourth Proportional to 376,485,761.55, 519,562,967.18 and 209,229,072.96

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Solution

The fourth proportional to 376,485,761.55, 519,562,967.18 and 209,229,072.96 is: 288,743,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,485,761.55 : 519,562,967.18 = 209,229,072.96 : x
  2. Step 2: Convert to fraction form
    376,485,761.55/519,562,967.18 = 209,229,072.96/x
  3. Step 3: Cross multiply
    376,485,761.55x = 519,562,967.18 × 209,229,072.96
  4. Step 4: Simplify right side
    376,485,761.55x = 108,707,677,966,372,160
  5. Step 5: Solve for x
    x = 108,707,677,966,372,160/376,485,761.55
  6. Step 6: Final answer
    x = 288,743,132.06

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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.