Home / 1,261,189,178.83-1,740,407,347.10-696,661,910.39

Finding the Fourth Proportional to 1,261,189,178.83, 1,740,407,347.10 and 696,661,910.39

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Solution

The fourth proportional to 1,261,189,178.83, 1,740,407,347.10 and 696,661,910.39 is: 961,374,810.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,189,178.83 : 1,740,407,347.10 = 696,661,910.39 : x
  2. Step 2: Convert to fraction form
    1,261,189,178.83/1,740,407,347.10 = 696,661,910.39/x
  3. Step 3: Cross multiply
    1,261,189,178.83x = 1,740,407,347.10 × 696,661,910.39
  4. Step 4: Simplify right side
    1,261,189,178.83x = 1,212,475,507,293,570,560
  5. Step 5: Solve for x
    x = 1,212,475,507,293,570,560/1,261,189,178.83
  6. Step 6: Final answer
    x = 961,374,810.10

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Half scale
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Double scale
Find fourth proportional to 1,261,189,179.83, 1,740,407,348.48 and 696,661,911.39
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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.