Home / 995,336,620.80-1,492,474,089.60-420,258,220.80

Finding the Fourth Proportional to 995,336,620.80, 1,492,474,089.60 and 420,258,220.80

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Solution

The fourth proportional to 995,336,620.80, 1,492,474,089.60 and 420,258,220.80 is: 630,163,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,336,620.80 : 1,492,474,089.60 = 420,258,220.80 : x
  2. Step 2: Convert to fraction form
    995,336,620.80/1,492,474,089.60 = 420,258,220.80/x
  3. Step 3: Cross multiply
    995,336,620.80x = 1,492,474,089.60 × 420,258,220.80
  4. Step 4: Simplify right side
    995,336,620.80x = 627,224,505,485,395,712
  5. Step 5: Solve for x
    x = 627,224,505,485,395,712/995,336,620.80
  6. Step 6: Final answer
    x = 630,163,195.42

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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.