Home / 521,538,045.30-782,307,067.95-133,391,253.60

Finding the Fourth Proportional to 521,538,045.30, 782,307,067.95 and 133,391,253.60

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Solution

The fourth proportional to 521,538,045.30, 782,307,067.95 and 133,391,253.60 is: 200,086,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,538,045.30 : 782,307,067.95 = 133,391,253.60 : x
  2. Step 2: Convert to fraction form
    521,538,045.30/782,307,067.95 = 133,391,253.60/x
  3. Step 3: Cross multiply
    521,538,045.30x = 782,307,067.95 × 133,391,253.60
  4. Step 4: Simplify right side
    521,538,045.30x = 104,352,920,493,990,880
  5. Step 5: Solve for x
    x = 104,352,920,493,990,880/521,538,045.30
  6. Step 6: Final answer
    x = 200,086,880.40

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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.