Home / 1,201,207,015.80-1,801,810,523.70-943,217,998.20

Finding the Fourth Proportional to 1,201,207,015.80, 1,801,810,523.70 and 943,217,998.20

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Solution

The fourth proportional to 1,201,207,015.80, 1,801,810,523.70 and 943,217,998.20 is: 1,414,826,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,207,015.80 : 1,801,810,523.70 = 943,217,998.20 : x
  2. Step 2: Convert to fraction form
    1,201,207,015.80/1,801,810,523.70 = 943,217,998.20/x
  3. Step 3: Cross multiply
    1,201,207,015.80x = 1,801,810,523.70 × 943,217,998.20
  4. Step 4: Simplify right side
    1,201,207,015.80x = 1,699,500,115,300,007,680
  5. Step 5: Solve for x
    x = 1,699,500,115,300,007,680/1,201,207,015.80
  6. Step 6: Final answer
    x = 1,414,826,997.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.