Home / 129,356,830.40-194,052,960.30-43,086,241.40

Finding the Fourth Proportional to 129,356,830.40, 194,052,960.30 and 43,086,241.40

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Solution

The fourth proportional to 129,356,830.40, 194,052,960.30 and 43,086,241.40 is: 64,635,262.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,356,830.40 : 194,052,960.30 = 43,086,241.40 : x
  2. Step 2: Convert to fraction form
    129,356,830.40/194,052,960.30 = 43,086,241.40/x
  3. Step 3: Cross multiply
    129,356,830.40x = 194,052,960.30 × 43,086,241.40
  4. Step 4: Simplify right side
    129,356,830.40x = 8,361,012,691,870,417
  5. Step 5: Solve for x
    x = 8,361,012,691,870,417/129,356,830.40
  6. Step 6: Final answer
    x = 64,635,262.52

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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.