Home / 604,325,087.20-906,487,630.80-420,659,077.60

Finding the Fourth Proportional to 604,325,087.20, 906,487,630.80 and 420,659,077.60

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Solution

The fourth proportional to 604,325,087.20, 906,487,630.80 and 420,659,077.60 is: 630,988,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,325,087.20 : 906,487,630.80 = 420,659,077.60 : x
  2. Step 2: Convert to fraction form
    604,325,087.20/906,487,630.80 = 420,659,077.60/x
  3. Step 3: Cross multiply
    604,325,087.20x = 906,487,630.80 × 420,659,077.60
  4. Step 4: Simplify right side
    604,325,087.20x = 381,322,250,628,137,344
  5. Step 5: Solve for x
    x = 381,322,250,628,137,344/604,325,087.20
  6. Step 6: Final answer
    x = 630,988,616.40

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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.