Home / 211,238,909.20-316,858,363.80-203,586,158.80

Finding the Fourth Proportional to 211,238,909.20, 316,858,363.80 and 203,586,158.80

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Solution

The fourth proportional to 211,238,909.20, 316,858,363.80 and 203,586,158.80 is: 305,379,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,238,909.20 : 316,858,363.80 = 203,586,158.80 : x
  2. Step 2: Convert to fraction form
    211,238,909.20/316,858,363.80 = 203,586,158.80/x
  3. Step 3: Cross multiply
    211,238,909.20x = 316,858,363.80 × 203,586,158.80
  4. Step 4: Simplify right side
    211,238,909.20x = 64,507,977,169,694,976
  5. Step 5: Solve for x
    x = 64,507,977,169,694,976/211,238,909.20
  6. Step 6: Final answer
    x = 305,379,238.20

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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.