Home / 568,521,644.45-784,545,415.34-317,627,920.85

Finding the Fourth Proportional to 568,521,644.45, 784,545,415.34 and 317,627,920.85

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Solution

The fourth proportional to 568,521,644.45, 784,545,415.34 and 317,627,920.85 is: 438,318,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,521,644.45 : 784,545,415.34 = 317,627,920.85 : x
  2. Step 2: Convert to fraction form
    568,521,644.45/784,545,415.34 = 317,627,920.85/x
  3. Step 3: Cross multiply
    568,521,644.45x = 784,545,415.34 × 317,627,920.85
  4. Step 4: Simplify right side
    568,521,644.45x = 249,193,529,081,333,056
  5. Step 5: Solve for x
    x = 249,193,529,081,333,056/568,521,644.45
  6. Step 6: Final answer
    x = 438,318,455.45

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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.