Home / 520,440,043.38-718,200,563.76-297,419,167.32

Finding the Fourth Proportional to 520,440,043.38, 718,200,563.76 and 297,419,167.32

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Solution

The fourth proportional to 520,440,043.38, 718,200,563.76 and 297,419,167.32 is: 410,434,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,440,043.38 : 718,200,563.76 = 297,419,167.32 : x
  2. Step 2: Convert to fraction form
    520,440,043.38/718,200,563.76 = 297,419,167.32/x
  3. Step 3: Cross multiply
    520,440,043.38x = 718,200,563.76 × 297,419,167.32
  4. Step 4: Simplify right side
    520,440,043.38x = 213,606,613,642,253,760
  5. Step 5: Solve for x
    x = 213,606,613,642,253,760/520,440,043.38
  6. Step 6: Final answer
    x = 410,434,624.24

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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.