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Finding the Fourth Proportional to 873,767,338.20, 1,310,651,007.30 and 798,940,445.40

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Solution

The fourth proportional to 873,767,338.20, 1,310,651,007.30 and 798,940,445.40 is: 1,198,410,668.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,767,338.20 : 1,310,651,007.30 = 798,940,445.40 : x
  2. Step 2: Convert to fraction form
    873,767,338.20/1,310,651,007.30 = 798,940,445.40/x
  3. Step 3: Cross multiply
    873,767,338.20x = 1,310,651,007.30 × 798,940,445.40
  4. Step 4: Simplify right side
    873,767,338.20x = 1,047,132,099,536,220,544
  5. Step 5: Solve for x
    x = 1,047,132,099,536,220,544/873,767,338.20
  6. Step 6: Final answer
    x = 1,198,410,668.10

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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.