Home / 15,838,359,132.37-21,858,809,372.81-9,408,204,516.85

Finding the Fourth Proportional to 15,838,359,132.37, 21,858,809,372.81 and 9,408,204,516.85

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Solution

The fourth proportional to 15,838,359,132.37, 21,858,809,372.81 and 9,408,204,516.85 is: 12,984,435,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,838,359,132.37 : 21,858,809,372.81 = 9,408,204,516.85 : x
  2. Step 2: Convert to fraction form
    15,838,359,132.37/21,858,809,372.81 = 9,408,204,516.85/x
  3. Step 3: Cross multiply
    15,838,359,132.37x = 21,858,809,372.81 × 9,408,204,516.85
  4. Step 4: Simplify right side
    15,838,359,132.37x = 205,652,149,074,198,331,392
  5. Step 5: Solve for x
    x = 205,652,149,074,198,331,392/15,838,359,132.37
  6. Step 6: Final answer
    x = 12,984,435,278.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.