Home / 851,488,002.30-1,277,232,003.45-667,821,992.70

Finding the Fourth Proportional to 851,488,002.30, 1,277,232,003.45 and 667,821,992.70

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Solution

The fourth proportional to 851,488,002.30, 1,277,232,003.45 and 667,821,992.70 is: 1,001,732,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,488,002.30 : 1,277,232,003.45 = 667,821,992.70 : x
  2. Step 2: Convert to fraction form
    851,488,002.30/1,277,232,003.45 = 667,821,992.70/x
  3. Step 3: Cross multiply
    851,488,002.30x = 1,277,232,003.45 × 667,821,992.70
  4. Step 4: Simplify right side
    851,488,002.30x = 852,963,621,684,192,384
  5. Step 5: Solve for x
    x = 852,963,621,684,192,384/851,488,002.30
  6. Step 6: Final answer
    x = 1,001,732,989.05

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1.5x scale

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.