Home / 821,410,335.60-1,232,103,591.72-199,630,178.16

Finding the Fourth Proportional to 821,410,335.60, 1,232,103,591.72 and 199,630,178.16

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Solution

The fourth proportional to 821,410,335.60, 1,232,103,591.72 and 199,630,178.16 is: 299,442,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,410,335.60 : 1,232,103,591.72 = 199,630,178.16 : x
  2. Step 2: Convert to fraction form
    821,410,335.60/1,232,103,591.72 = 199,630,178.16/x
  3. Step 3: Cross multiply
    821,410,335.60x = 1,232,103,591.72 × 199,630,178.16
  4. Step 4: Simplify right side
    821,410,335.60x = 245,965,059,526,639,488
  5. Step 5: Solve for x
    x = 245,965,059,526,639,488/821,410,335.60
  6. Step 6: Final answer
    x = 299,442,372.30

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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.