Home / 129,292,891.20-194,033,815.20-91,029,139.20

Finding the Fourth Proportional to 129,292,891.20, 194,033,815.20 and 91,029,139.20

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Solution

The fourth proportional to 129,292,891.20, 194,033,815.20 and 91,029,139.20 is: 136,610,226.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,292,891.20 : 194,033,815.20 = 91,029,139.20 : x
  2. Step 2: Convert to fraction form
    129,292,891.20/194,033,815.20 = 91,029,139.20/x
  3. Step 3: Cross multiply
    129,292,891.20x = 194,033,815.20 × 91,029,139.20
  4. Step 4: Simplify right side
    129,292,891.20x = 17,662,731,173,347,876
  5. Step 5: Solve for x
    x = 17,662,731,173,347,876/129,292,891.20
  6. Step 6: Final answer
    x = 136,610,226.67

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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.