Home / 203,856,617.70-305,784,926.55-127,415,427.30

Finding the Fourth Proportional to 203,856,617.70, 305,784,926.55 and 127,415,427.30

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Solution

The fourth proportional to 203,856,617.70, 305,784,926.55 and 127,415,427.30 is: 191,123,140.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,856,617.70 : 305,784,926.55 = 127,415,427.30 : x
  2. Step 2: Convert to fraction form
    203,856,617.70/305,784,926.55 = 127,415,427.30/x
  3. Step 3: Cross multiply
    203,856,617.70x = 305,784,926.55 × 127,415,427.30
  4. Step 4: Simplify right side
    203,856,617.70x = 38,961,717,078,267,368
  5. Step 5: Solve for x
    x = 38,961,717,078,267,368/203,856,617.70
  6. Step 6: Final answer
    x = 191,123,140.95

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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.