Home / 828,885,906.40-1,242,992,936.40-283,346,629.60

Finding the Fourth Proportional to 828,885,906.40, 1,242,992,936.40 and 283,346,629.60

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Solution

The fourth proportional to 828,885,906.40, 1,242,992,936.40 and 283,346,629.60 is: 424,905,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,885,906.40 : 1,242,992,936.40 = 283,346,629.60 : x
  2. Step 2: Convert to fraction form
    828,885,906.40/1,242,992,936.40 = 283,346,629.60/x
  3. Step 3: Cross multiply
    828,885,906.40x = 1,242,992,936.40 × 283,346,629.60
  4. Step 4: Simplify right side
    828,885,906.40x = 352,197,859,145,547,200
  5. Step 5: Solve for x
    x = 352,197,859,145,547,200/828,885,906.40
  6. Step 6: Final answer
    x = 424,905,112.30

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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.