Home / 1,228,325,857.20-1,842,488,785.80-815,077,335.60

Finding the Fourth Proportional to 1,228,325,857.20, 1,842,488,785.80 and 815,077,335.60

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Solution

The fourth proportional to 1,228,325,857.20, 1,842,488,785.80 and 815,077,335.60 is: 1,222,616,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,325,857.20 : 1,842,488,785.80 = 815,077,335.60 : x
  2. Step 2: Convert to fraction form
    1,228,325,857.20/1,842,488,785.80 = 815,077,335.60/x
  3. Step 3: Cross multiply
    1,228,325,857.20x = 1,842,488,785.80 × 815,077,335.60
  4. Step 4: Simplify right side
    1,228,325,857.20x = 1,501,770,850,402,743,040
  5. Step 5: Solve for x
    x = 1,501,770,850,402,743,040/1,228,325,857.20
  6. Step 6: Final answer
    x = 1,222,616,003.40

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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.