Home / 885,701,286.80-1,328,551,930.20-821,204,032.40

Finding the Fourth Proportional to 885,701,286.80, 1,328,551,930.20 and 821,204,032.40

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Solution

The fourth proportional to 885,701,286.80, 1,328,551,930.20 and 821,204,032.40 is: 1,231,806,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,701,286.80 : 1,328,551,930.20 = 821,204,032.40 : x
  2. Step 2: Convert to fraction form
    885,701,286.80/1,328,551,930.20 = 821,204,032.40/x
  3. Step 3: Cross multiply
    885,701,286.80x = 1,328,551,930.20 × 821,204,032.40
  4. Step 4: Simplify right side
    885,701,286.80x = 1,091,012,202,333,043,328
  5. Step 5: Solve for x
    x = 1,091,012,202,333,043,328/885,701,286.80
  6. Step 6: Final answer
    x = 1,231,806,048.60

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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.