Home / 520,440,021.32-718,200,533.16-297,419,144.92

Finding the Fourth Proportional to 520,440,021.32, 718,200,533.16 and 297,419,144.92

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Solution

The fourth proportional to 520,440,021.32, 718,200,533.16 and 297,419,144.92 is: 410,434,593.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,440,021.32 : 718,200,533.16 = 297,419,144.92 : x
  2. Step 2: Convert to fraction form
    520,440,021.32/718,200,533.16 = 297,419,144.92/x
  3. Step 3: Cross multiply
    520,440,021.32x = 718,200,533.16 × 297,419,144.92
  4. Step 4: Simplify right side
    520,440,021.32x = 213,606,588,451,739,808
  5. Step 5: Solve for x
    x = 213,606,588,451,739,808/520,440,021.32
  6. Step 6: Final answer
    x = 410,434,593.24

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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.