Home / 851,488,004.80-1,277,232,007.20-667,821,995.20

Finding the Fourth Proportional to 851,488,004.80, 1,277,232,007.20 and 667,821,995.20

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Solution

The fourth proportional to 851,488,004.80, 1,277,232,007.20 and 667,821,995.20 is: 1,001,732,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,488,004.80 : 1,277,232,007.20 = 667,821,995.20 : x
  2. Step 2: Convert to fraction form
    851,488,004.80/1,277,232,007.20 = 667,821,995.20/x
  3. Step 3: Cross multiply
    851,488,004.80x = 1,277,232,007.20 × 667,821,995.20
  4. Step 4: Simplify right side
    851,488,004.80x = 852,963,627,381,604,864
  5. Step 5: Solve for x
    x = 852,963,627,381,604,864/851,488,004.80
  6. Step 6: Final answer
    x = 1,001,732,992.80

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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.