Home / 1,261,189,178.27-1,740,407,346.33-696,661,909.83

Finding the Fourth Proportional to 1,261,189,178.27, 1,740,407,346.33 and 696,661,909.83

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Solution

The fourth proportional to 1,261,189,178.27, 1,740,407,346.33 and 696,661,909.83 is: 961,374,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,189,178.27 : 1,740,407,346.33 = 696,661,909.83 : x
  2. Step 2: Convert to fraction form
    1,261,189,178.27/1,740,407,346.33 = 696,661,909.83/x
  3. Step 3: Cross multiply
    1,261,189,178.27x = 1,740,407,346.33 × 696,661,909.83
  4. Step 4: Simplify right side
    1,261,189,178.27x = 1,212,475,505,773,842,432
  5. Step 5: Solve for x
    x = 1,212,475,505,773,842,432/1,261,189,178.27
  6. Step 6: Final answer
    x = 961,374,809.32

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Double scale
Find fourth proportional to 1,261,189,179.27, 1,740,407,347.71 and 696,661,910.83
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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.