Home / 668,860,997.90-1,004,047,324.05-396,385,292.30

Finding the Fourth Proportional to 668,860,997.90, 1,004,047,324.05 and 396,385,292.30

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Solution

The fourth proportional to 668,860,997.90, 1,004,047,324.05 and 396,385,292.30 is: 595,025,862.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,860,997.90 : 1,004,047,324.05 = 396,385,292.30 : x
  2. Step 2: Convert to fraction form
    668,860,997.90/1,004,047,324.05 = 396,385,292.30/x
  3. Step 3: Cross multiply
    668,860,997.90x = 1,004,047,324.05 × 396,385,292.30
  4. Step 4: Simplify right side
    668,860,997.90x = 397,989,592,026,592,064
  5. Step 5: Solve for x
    x = 397,989,592,026,592,064/668,860,997.90
  6. Step 6: Final answer
    x = 595,025,862.29

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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.