Home / 331,451,390.80-497,177,086.20-210,817,637.20

Finding the Fourth Proportional to 331,451,390.80, 497,177,086.20 and 210,817,637.20

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Solution

The fourth proportional to 331,451,390.80, 497,177,086.20 and 210,817,637.20 is: 316,226,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,451,390.80 : 497,177,086.20 = 210,817,637.20 : x
  2. Step 2: Convert to fraction form
    331,451,390.80/497,177,086.20 = 210,817,637.20/x
  3. Step 3: Cross multiply
    331,451,390.80x = 497,177,086.20 × 210,817,637.20
  4. Step 4: Simplify right side
    331,451,390.80x = 104,813,698,582,664,720
  5. Step 5: Solve for x
    x = 104,813,698,582,664,720/331,451,390.80
  6. Step 6: Final answer
    x = 316,226,455.80

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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.