Home / 664,675,338.31-996,121,804.83-517,300,856.80

Finding the Fourth Proportional to 664,675,338.31, 996,121,804.83 and 517,300,856.80

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Solution

The fourth proportional to 664,675,338.31, 996,121,804.83 and 517,300,856.80 is: 775,257,683.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,675,338.31 : 996,121,804.83 = 517,300,856.80 : x
  2. Step 2: Convert to fraction form
    664,675,338.31/996,121,804.83 = 517,300,856.80/x
  3. Step 3: Cross multiply
    664,675,338.31x = 996,121,804.83 × 517,300,856.80
  4. Step 4: Simplify right side
    664,675,338.31x = 515,294,663,115,721,408
  5. Step 5: Solve for x
    x = 515,294,663,115,721,408/664,675,338.31
  6. Step 6: Final answer
    x = 775,257,683.59

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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.