Home / 209,123,269.73-313,618,353.70-69,037,643.96

Finding the Fourth Proportional to 209,123,269.73, 313,618,353.70 and 69,037,643.96

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Solution

The fourth proportional to 209,123,269.73, 313,618,353.70 and 69,037,643.96 is: 103,534,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,123,269.73 : 313,618,353.70 = 69,037,643.96 : x
  2. Step 2: Convert to fraction form
    209,123,269.73/313,618,353.70 = 69,037,643.96/x
  3. Step 3: Cross multiply
    209,123,269.73x = 313,618,353.70 × 69,037,643.96
  4. Step 4: Simplify right side
    209,123,269.73x = 21,651,472,242,061,944
  5. Step 5: Solve for x
    x = 21,651,472,242,061,944/209,123,269.73
  6. Step 6: Final answer
    x = 103,534,495.56

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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.