Home / 129,011,198,774.79-193,517,410,278.87-39,474,049,357.42

Finding the Fourth Proportional to 129,011,198,774.79, 193,517,410,278.87 and 39,474,049,357.42

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Solution

The fourth proportional to 129,011,198,774.79, 193,517,410,278.87 and 39,474,049,357.42 is: 59,211,261,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,011,198,774.79 : 193,517,410,278.87 = 39,474,049,357.42 : x
  2. Step 2: Convert to fraction form
    129,011,198,774.79/193,517,410,278.87 = 39,474,049,357.42/x
  3. Step 3: Cross multiply
    129,011,198,774.79x = 193,517,410,278.87 × 39,474,049,357.42
  4. Step 4: Simplify right side
    129,011,198,774.79x = 7,638,915,804,867,823,927,296
  5. Step 5: Solve for x
    x = 7,638,915,804,867,823,927,296/129,011,198,774.79
  6. Step 6: Final answer
    x = 59,211,261,327.81

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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.