Home / 1,289,205,014.88-1,933,805,109.96-403,958,144.76

Finding the Fourth Proportional to 1,289,205,014.88, 1,933,805,109.96 and 403,958,144.76

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Solution

The fourth proportional to 1,289,205,014.88, 1,933,805,109.96 and 403,958,144.76 is: 605,936,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,205,014.88 : 1,933,805,109.96 = 403,958,144.76 : x
  2. Step 2: Convert to fraction form
    1,289,205,014.88/1,933,805,109.96 = 403,958,144.76/x
  3. Step 3: Cross multiply
    1,289,205,014.88x = 1,933,805,109.96 × 403,958,144.76
  4. Step 4: Simplify right side
    1,289,205,014.88x = 781,176,324,546,849,408
  5. Step 5: Solve for x
    x = 781,176,324,546,849,408/1,289,205,014.88
  6. Step 6: Final answer
    x = 605,936,461.25

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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.