Home / 668,860,998.40-1,004,047,324.80-396,385,292.80

Finding the Fourth Proportional to 668,860,998.40, 1,004,047,324.80 and 396,385,292.80

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Solution

The fourth proportional to 668,860,998.40, 1,004,047,324.80 and 396,385,292.80 is: 595,025,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,860,998.40 : 1,004,047,324.80 = 396,385,292.80 : x
  2. Step 2: Convert to fraction form
    668,860,998.40/1,004,047,324.80 = 396,385,292.80/x
  3. Step 3: Cross multiply
    668,860,998.40x = 1,004,047,324.80 × 396,385,292.80
  4. Step 4: Simplify right side
    668,860,998.40x = 397,989,592,825,904,704
  5. Step 5: Solve for x
    x = 397,989,592,825,904,704/668,860,998.40
  6. Step 6: Final answer
    x = 595,025,863.04

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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.