Home / 1,289,204,947.38-1,933,805,008.96-403,958,077.40

Finding the Fourth Proportional to 1,289,204,947.38, 1,933,805,008.96 and 403,958,077.40

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Solution

The fourth proportional to 1,289,204,947.38, 1,933,805,008.96 and 403,958,077.40 is: 605,936,360.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,204,947.38 : 1,933,805,008.96 = 403,958,077.40 : x
  2. Step 2: Convert to fraction form
    1,289,204,947.38/1,933,805,008.96 = 403,958,077.40/x
  3. Step 3: Cross multiply
    1,289,204,947.38x = 1,933,805,008.96 × 403,958,077.40
  4. Step 4: Simplify right side
    1,289,204,947.38x = 781,176,153,485,971,328
  5. Step 5: Solve for x
    x = 781,176,153,485,971,328/1,289,204,947.38
  6. Step 6: Final answer
    x = 605,936,360.29

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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.