Home / 426,264,738.60-639,397,107.90-288,515,231.40

Finding the Fourth Proportional to 426,264,738.60, 639,397,107.90 and 288,515,231.40

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Solution

The fourth proportional to 426,264,738.60, 639,397,107.90 and 288,515,231.40 is: 432,772,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,264,738.60 : 639,397,107.90 = 288,515,231.40 : x
  2. Step 2: Convert to fraction form
    426,264,738.60/639,397,107.90 = 288,515,231.40/x
  3. Step 3: Cross multiply
    426,264,738.60x = 639,397,107.90 × 288,515,231.40
  4. Step 4: Simplify right side
    426,264,738.60x = 184,475,804,542,259,232
  5. Step 5: Solve for x
    x = 184,475,804,542,259,232/426,264,738.60
  6. Step 6: Final answer
    x = 432,772,847.10

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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.