Home / 1,322,573,981.86-1,985,086,793.12-667,984,701.32

Finding the Fourth Proportional to 1,322,573,981.86, 1,985,086,793.12 and 667,984,701.32

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Solution

The fourth proportional to 1,322,573,981.86, 1,985,086,793.12 and 667,984,701.32 is: 1,002,596,169.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,573,981.86 : 1,985,086,793.12 = 667,984,701.32 : x
  2. Step 2: Convert to fraction form
    1,322,573,981.86/1,985,086,793.12 = 667,984,701.32/x
  3. Step 3: Cross multiply
    1,322,573,981.86x = 1,985,086,793.12 × 667,984,701.32
  4. Step 4: Simplify right side
    1,322,573,981.86x = 1,326,007,608,596,539,904
  5. Step 5: Solve for x
    x = 1,326,007,608,596,539,904/1,322,573,981.86
  6. Step 6: Final answer
    x = 1,002,596,169.88

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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.