Home / 372,414,643.60-558,621,965.40-331,520,258.64

Finding the Fourth Proportional to 372,414,643.60, 558,621,965.40 and 331,520,258.64

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Solution

The fourth proportional to 372,414,643.60, 558,621,965.40 and 331,520,258.64 is: 497,280,387.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,414,643.60 : 558,621,965.40 = 331,520,258.64 : x
  2. Step 2: Convert to fraction form
    372,414,643.60/558,621,965.40 = 331,520,258.64/x
  3. Step 3: Cross multiply
    372,414,643.60x = 558,621,965.40 × 331,520,258.64
  4. Step 4: Simplify right side
    372,414,643.60x = 185,194,498,451,393,120
  5. Step 5: Solve for x
    x = 185,194,498,451,393,120/372,414,643.60
  6. Step 6: Final answer
    x = 497,280,387.96

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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.