Home / 965,981,309.38-1,449,203,140.80-310,993,562.90

Finding the Fourth Proportional to 965,981,309.38, 1,449,203,140.80 and 310,993,562.90

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Solution

The fourth proportional to 965,981,309.38, 1,449,203,140.80 and 310,993,562.90 is: 466,564,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,981,309.38 : 1,449,203,140.80 = 310,993,562.90 : x
  2. Step 2: Convert to fraction form
    965,981,309.38/1,449,203,140.80 = 310,993,562.90/x
  3. Step 3: Cross multiply
    965,981,309.38x = 1,449,203,140.80 × 310,993,562.90
  4. Step 4: Simplify right side
    965,981,309.38x = 450,692,848,126,885,312
  5. Step 5: Solve for x
    x = 450,692,848,126,885,312/965,981,309.38
  6. Step 6: Final answer
    x = 466,564,770.72

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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.