Home / 513,373,376.32-708,545,816.80-304,644,609.12

Finding the Fourth Proportional to 513,373,376.32, 708,545,816.80 and 304,644,609.12

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Solution

The fourth proportional to 513,373,376.32, 708,545,816.80 and 304,644,609.12 is: 420,463,298.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,373,376.32 : 708,545,816.80 = 304,644,609.12 : x
  2. Step 2: Convert to fraction form
    513,373,376.32/708,545,816.80 = 304,644,609.12/x
  3. Step 3: Cross multiply
    513,373,376.32x = 708,545,816.80 × 304,644,609.12
  4. Step 4: Simplify right side
    513,373,376.32x = 215,854,663,402,647,104
  5. Step 5: Solve for x
    x = 215,854,663,402,647,104/513,373,376.32
  6. Step 6: Final answer
    x = 420,463,298.95

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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.