Home / 512,636,858.22-707,424,369.18-300,940,288.32

Finding the Fourth Proportional to 512,636,858.22, 707,424,369.18 and 300,940,288.32

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Solution

The fourth proportional to 512,636,858.22, 707,424,369.18 and 300,940,288.32 is: 415,289,088.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,636,858.22 : 707,424,369.18 = 300,940,288.32 : x
  2. Step 2: Convert to fraction form
    512,636,858.22/707,424,369.18 = 300,940,288.32/x
  3. Step 3: Cross multiply
    512,636,858.22x = 707,424,369.18 × 300,940,288.32
  4. Step 4: Simplify right side
    512,636,858.22x = 212,892,493,625,623,296
  5. Step 5: Solve for x
    x = 212,892,493,625,623,296/512,636,858.22
  6. Step 6: Final answer
    x = 415,289,088.59

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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.