Home / 376,082,327.85-518,994,612.90-208,818,900.26

Finding the Fourth Proportional to 376,082,327.85, 518,994,612.90 and 208,818,900.26

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Solution

The fourth proportional to 376,082,327.85, 518,994,612.90 and 208,818,900.26 is: 288,170,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,082,327.85 : 518,994,612.90 = 208,818,900.26 : x
  2. Step 2: Convert to fraction form
    376,082,327.85/518,994,612.90 = 208,818,900.26/x
  3. Step 3: Cross multiply
    376,082,327.85x = 518,994,612.90 × 208,818,900.26
  4. Step 4: Simplify right side
    376,082,327.85x = 108,375,884,308,915,600
  5. Step 5: Solve for x
    x = 108,375,884,308,915,600/376,082,327.85
  6. Step 6: Final answer
    x = 288,170,637.87

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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.