Home / 830,851,843.60-1,246,277,765.40-400,870,147.60

Finding the Fourth Proportional to 830,851,843.60, 1,246,277,765.40 and 400,870,147.60

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Solution

The fourth proportional to 830,851,843.60, 1,246,277,765.40 and 400,870,147.60 is: 601,305,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,851,843.60 : 1,246,277,765.40 = 400,870,147.60 : x
  2. Step 2: Convert to fraction form
    830,851,843.60/1,246,277,765.40 = 400,870,147.60/x
  3. Step 3: Cross multiply
    830,851,843.60x = 1,246,277,765.40 × 400,870,147.60
  4. Step 4: Simplify right side
    830,851,843.60x = 499,595,551,766,496,256
  5. Step 5: Solve for x
    x = 499,595,551,766,496,256/830,851,843.60
  6. Step 6: Final answer
    x = 601,305,221.40

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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.