Home / 664,425,685.31-996,625,698.57-198,402,872.04

Finding the Fourth Proportional to 664,425,685.31, 996,625,698.57 and 198,402,872.04

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Solution

The fourth proportional to 664,425,685.31, 996,625,698.57 and 198,402,872.04 is: 297,600,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,425,685.31 : 996,625,698.57 = 198,402,872.04 : x
  2. Step 2: Convert to fraction form
    664,425,685.31/996,625,698.57 = 198,402,872.04/x
  3. Step 3: Cross multiply
    664,425,685.31x = 996,625,698.57 × 198,402,872.04
  4. Step 4: Simplify right side
    664,425,685.31x = 197,733,400,945,159,328
  5. Step 5: Solve for x
    x = 197,733,400,945,159,328/664,425,685.31
  6. Step 6: Final answer
    x = 297,600,477.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.