Home / 72,769,576.70-109,154,365.05-69,899,795.30

Finding the Fourth Proportional to 72,769,576.70, 109,154,365.05 and 69,899,795.30

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Solution

The fourth proportional to 72,769,576.70, 109,154,365.05 and 69,899,795.30 is: 104,849,692.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,769,576.70 : 109,154,365.05 = 69,899,795.30 : x
  2. Step 2: Convert to fraction form
    72,769,576.70/109,154,365.05 = 69,899,795.30/x
  3. Step 3: Cross multiply
    72,769,576.70x = 109,154,365.05 × 69,899,795.30
  4. Step 4: Simplify right side
    72,769,576.70x = 7,629,867,773,096,474
  5. Step 5: Solve for x
    x = 7,629,867,773,096,474/72,769,576.70
  6. Step 6: Final answer
    x = 104,849,692.95

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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.