Home / 28,106,961,248.90-42,158,890,003.37-20,551,488,481.33

Finding the Fourth Proportional to 28,106,961,248.90, 42,158,890,003.37 and 20,551,488,481.33

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Solution

The fourth proportional to 28,106,961,248.90, 42,158,890,003.37 and 20,551,488,481.33 is: 30,826,098,012.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106,961,248.90 : 42,158,890,003.37 = 20,551,488,481.33 : x
  2. Step 2: Convert to fraction form
    28,106,961,248.90/42,158,890,003.37 = 20,551,488,481.33/x
  3. Step 3: Cross multiply
    28,106,961,248.90x = 42,158,890,003.37 × 20,551,488,481.33
  4. Step 4: Simplify right side
    28,106,961,248.90x = 866,427,942,289,687,707,648
  5. Step 5: Solve for x
    x = 866,427,942,289,687,707,648/28,106,961,248.90
  6. Step 6: Final answer
    x = 30,826,098,012.41

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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.