Home / 668,860,965.15-1,004,047,274.93-396,385,259.55

Finding the Fourth Proportional to 668,860,965.15, 1,004,047,274.93 and 396,385,259.55

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Solution

The fourth proportional to 668,860,965.15, 1,004,047,274.93 and 396,385,259.55 is: 595,025,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,860,965.15 : 1,004,047,274.93 = 396,385,259.55 : x
  2. Step 2: Convert to fraction form
    668,860,965.15/1,004,047,274.93 = 396,385,259.55/x
  3. Step 3: Cross multiply
    668,860,965.15x = 1,004,047,274.93 × 396,385,259.55
  4. Step 4: Simplify right side
    668,860,965.15x = 397,989,539,671,616,320
  5. Step 5: Solve for x
    x = 397,989,539,671,616,320/668,860,965.15
  6. Step 6: Final answer
    x = 595,025,813.15

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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.