Home / 129,774,979.80-194,662,469.70-119,921,232.60

Finding the Fourth Proportional to 129,774,979.80, 194,662,469.70 and 119,921,232.60

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Solution

The fourth proportional to 129,774,979.80, 194,662,469.70 and 119,921,232.60 is: 179,881,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,774,979.80 : 194,662,469.70 = 119,921,232.60 : x
  2. Step 2: Convert to fraction form
    129,774,979.80/194,662,469.70 = 119,921,232.60/x
  3. Step 3: Cross multiply
    129,774,979.80x = 194,662,469.70 × 119,921,232.60
  4. Step 4: Simplify right side
    129,774,979.80x = 23,344,163,307,384,148
  5. Step 5: Solve for x
    x = 23,344,163,307,384,148/129,774,979.80
  6. Step 6: Final answer
    x = 179,881,848.90

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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.