Home / 1,290,834,677.91-1,936,647,175.60-661,012,673.18

Finding the Fourth Proportional to 1,290,834,677.91, 1,936,647,175.60 and 661,012,673.18

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Solution

The fourth proportional to 1,290,834,677.91, 1,936,647,175.60 and 661,012,673.18 is: 991,721,363.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,834,677.91 : 1,936,647,175.60 = 661,012,673.18 : x
  2. Step 2: Convert to fraction form
    1,290,834,677.91/1,936,647,175.60 = 661,012,673.18/x
  3. Step 3: Cross multiply
    1,290,834,677.91x = 1,936,647,175.60 × 661,012,673.18
  4. Step 4: Simplify right side
    1,290,834,677.91x = 1,280,148,326,555,493,120
  5. Step 5: Solve for x
    x = 1,280,148,326,555,493,120/1,290,834,677.91
  6. Step 6: Final answer
    x = 991,721,363.29

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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.