Home / 20,911,830,789.39-31,374,377,197.39-7,465,826,229.09

Finding the Fourth Proportional to 20,911,830,789.39, 31,374,377,197.39 and 7,465,826,229.09

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Solution

The fourth proportional to 20,911,830,789.39, 31,374,377,197.39 and 7,465,826,229.09 is: 11,201,106,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,911,830,789.39 : 31,374,377,197.39 = 7,465,826,229.09 : x
  2. Step 2: Convert to fraction form
    20,911,830,789.39/31,374,377,197.39 = 7,465,826,229.09/x
  3. Step 3: Cross multiply
    20,911,830,789.39x = 31,374,377,197.39 × 7,465,826,229.09
  4. Step 4: Simplify right side
    20,911,830,789.39x = 234,235,648,201,539,452,928
  5. Step 5: Solve for x
    x = 234,235,648,201,539,452,928/20,911,830,789.39
  6. Step 6: Final answer
    x = 11,201,106,711.35

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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.