Home / 398,617,811.70-597,926,717.55-223,561,146.30

Finding the Fourth Proportional to 398,617,811.70, 597,926,717.55 and 223,561,146.30

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Solution

The fourth proportional to 398,617,811.70, 597,926,717.55 and 223,561,146.30 is: 335,341,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,617,811.70 : 597,926,717.55 = 223,561,146.30 : x
  2. Step 2: Convert to fraction form
    398,617,811.70/597,926,717.55 = 223,561,146.30/x
  3. Step 3: Cross multiply
    398,617,811.70x = 597,926,717.55 × 223,561,146.30
  4. Step 4: Simplify right side
    398,617,811.70x = 133,673,182,378,874,320
  5. Step 5: Solve for x
    x = 133,673,182,378,874,320/398,617,811.70
  6. Step 6: Final answer
    x = 335,341,719.45

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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.