Home / 1,198,149,012.67-1,653,413,920.40-669,517,342.66

Finding the Fourth Proportional to 1,198,149,012.67, 1,653,413,920.40 and 669,517,342.66

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Solution

The fourth proportional to 1,198,149,012.67, 1,653,413,920.40 and 669,517,342.66 is: 923,916,209.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,149,012.67 : 1,653,413,920.40 = 669,517,342.66 : x
  2. Step 2: Convert to fraction form
    1,198,149,012.67/1,653,413,920.40 = 669,517,342.66/x
  3. Step 3: Cross multiply
    1,198,149,012.67x = 1,653,413,920.40 × 669,517,342.66
  4. Step 4: Simplify right side
    1,198,149,012.67x = 1,106,989,294,297,692,544
  5. Step 5: Solve for x
    x = 1,106,989,294,297,692,544/1,198,149,012.67
  6. Step 6: Final answer
    x = 923,916,209.58

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Double scale
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1.5x scale

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.