Home / 398,617,687.20-597,926,530.80-223,561,021.80

Finding the Fourth Proportional to 398,617,687.20, 597,926,530.80 and 223,561,021.80

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Solution

The fourth proportional to 398,617,687.20, 597,926,530.80 and 223,561,021.80 is: 335,341,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,617,687.20 : 597,926,530.80 = 223,561,021.80 : x
  2. Step 2: Convert to fraction form
    398,617,687.20/597,926,530.80 = 223,561,021.80/x
  3. Step 3: Cross multiply
    398,617,687.20x = 597,926,530.80 × 223,561,021.80
  4. Step 4: Simplify right side
    398,617,687.20x = 133,673,066,186,977,168
  5. Step 5: Solve for x
    x = 133,673,066,186,977,168/398,617,687.20
  6. Step 6: Final answer
    x = 335,341,532.70

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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.