Home / 378,251,234.40-522,010,095.76-208,704,643.44

Finding the Fourth Proportional to 378,251,234.40, 522,010,095.76 and 208,704,643.44

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Solution

The fourth proportional to 378,251,234.40, 522,010,095.76 and 208,704,643.44 is: 288,025,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,251,234.40 : 522,010,095.76 = 208,704,643.44 : x
  2. Step 2: Convert to fraction form
    378,251,234.40/522,010,095.76 = 208,704,643.44/x
  3. Step 3: Cross multiply
    378,251,234.40x = 522,010,095.76 × 208,704,643.44
  4. Step 4: Simplify right side
    378,251,234.40x = 108,945,930,907,671,056
  5. Step 5: Solve for x
    x = 108,945,930,907,671,056/378,251,234.40
  6. Step 6: Final answer
    x = 288,025,314.92

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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.