Home / 1,261,189,184.28-1,740,407,354.61-696,661,915.83

Finding the Fourth Proportional to 1,261,189,184.28, 1,740,407,354.61 and 696,661,915.83

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Solution

The fourth proportional to 1,261,189,184.28, 1,740,407,354.61 and 696,661,915.83 is: 961,374,817.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,189,184.28 : 1,740,407,354.61 = 696,661,915.83 : x
  2. Step 2: Convert to fraction form
    1,261,189,184.28/1,740,407,354.61 = 696,661,915.83/x
  3. Step 3: Cross multiply
    1,261,189,184.28x = 1,740,407,354.61 × 696,661,915.83
  4. Step 4: Simplify right side
    1,261,189,184.28x = 1,212,475,521,987,224,832
  5. Step 5: Solve for x
    x = 1,212,475,521,987,224,832/1,261,189,184.28
  6. Step 6: Final answer
    x = 961,374,817.59

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Double scale
Find fourth proportional to 1,261,189,185.28, 1,740,407,355.99 and 696,661,916.83
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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.