Home / 1,238,921,982.64-1,857,703,716.82-491,180,260.76

Finding the Fourth Proportional to 1,238,921,982.64, 1,857,703,716.82 and 491,180,260.76

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Solution

The fourth proportional to 1,238,921,982.64, 1,857,703,716.82 and 491,180,260.76 is: 736,501,094.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,921,982.64 : 1,857,703,716.82 = 491,180,260.76 : x
  2. Step 2: Convert to fraction form
    1,238,921,982.64/1,857,703,716.82 = 491,180,260.76/x
  3. Step 3: Cross multiply
    1,238,921,982.64x = 1,857,703,716.82 × 491,180,260.76
  4. Step 4: Simplify right side
    1,238,921,982.64x = 912,467,396,040,736,128
  5. Step 5: Solve for x
    x = 912,467,396,040,736,128/1,238,921,982.64
  6. Step 6: Final answer
    x = 736,501,094.36

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Double scale
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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.