Home / 387,072,480.60-580,608,720.90-291,520,992.60

Finding the Fourth Proportional to 387,072,480.60, 580,608,720.90 and 291,520,992.60

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Solution

The fourth proportional to 387,072,480.60, 580,608,720.90 and 291,520,992.60 is: 437,281,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,072,480.60 : 580,608,720.90 = 291,520,992.60 : x
  2. Step 2: Convert to fraction form
    387,072,480.60/580,608,720.90 = 291,520,992.60/x
  3. Step 3: Cross multiply
    387,072,480.60x = 580,608,720.90 × 291,520,992.60
  4. Step 4: Simplify right side
    387,072,480.60x = 169,259,630,628,984,384
  5. Step 5: Solve for x
    x = 169,259,630,628,984,384/387,072,480.60
  6. Step 6: Final answer
    x = 437,281,488.90

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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.