Home / 392,741,936.96-541,958,898.80-216,520,300.40

Finding the Fourth Proportional to 392,741,936.96, 541,958,898.80 and 216,520,300.40

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Solution

The fourth proportional to 392,741,936.96, 541,958,898.80 and 216,520,300.40 is: 298,784,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,741,936.96 : 541,958,898.80 = 216,520,300.40 : x
  2. Step 2: Convert to fraction form
    392,741,936.96/541,958,898.80 = 216,520,300.40/x
  3. Step 3: Cross multiply
    392,741,936.96x = 541,958,898.80 × 216,520,300.40
  4. Step 4: Simplify right side
    392,741,936.96x = 117,345,103,570,460,720
  5. Step 5: Solve for x
    x = 117,345,103,570,460,720/392,741,936.96
  6. Step 6: Final answer
    x = 298,784,246.16

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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.