Home / 817,647,971.94-1,128,348,461.25-446,370,003.36

Finding the Fourth Proportional to 817,647,971.94, 1,128,348,461.25 and 446,370,003.36

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Solution

The fourth proportional to 817,647,971.94, 1,128,348,461.25 and 446,370,003.36 is: 615,987,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,647,971.94 : 1,128,348,461.25 = 446,370,003.36 : x
  2. Step 2: Convert to fraction form
    817,647,971.94/1,128,348,461.25 = 446,370,003.36/x
  3. Step 3: Cross multiply
    817,647,971.94x = 1,128,348,461.25 × 446,370,003.36
  4. Step 4: Simplify right side
    817,647,971.94x = 503,660,906,439,413,376
  5. Step 5: Solve for x
    x = 503,660,906,439,413,376/817,647,971.94
  6. Step 6: Final answer
    x = 615,987,471.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.