Home / 521,768,341.20-782,652,511.80-496,259,173.20

Finding the Fourth Proportional to 521,768,341.20, 782,652,511.80 and 496,259,173.20

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Solution

The fourth proportional to 521,768,341.20, 782,652,511.80 and 496,259,173.20 is: 744,388,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,768,341.20 : 782,652,511.80 = 496,259,173.20 : x
  2. Step 2: Convert to fraction form
    521,768,341.20/782,652,511.80 = 496,259,173.20/x
  3. Step 3: Cross multiply
    521,768,341.20x = 782,652,511.80 × 496,259,173.20
  4. Step 4: Simplify right side
    521,768,341.20x = 388,398,488,408,771,200
  5. Step 5: Solve for x
    x = 388,398,488,408,771,200/521,768,341.20
  6. Step 6: Final answer
    x = 744,388,759.80

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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.