Home / 209,123,273.85-313,618,359.84-69,037,648.08

Finding the Fourth Proportional to 209,123,273.85, 313,618,359.84 and 69,037,648.08

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Solution

The fourth proportional to 209,123,273.85, 313,618,359.84 and 69,037,648.08 is: 103,534,501.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,123,273.85 : 313,618,359.84 = 69,037,648.08 : x
  2. Step 2: Convert to fraction form
    209,123,273.85/313,618,359.84 = 69,037,648.08/x
  3. Step 3: Cross multiply
    209,123,273.85x = 313,618,359.84 × 69,037,648.08
  4. Step 4: Simplify right side
    209,123,273.85x = 21,651,473,958,060,724
  5. Step 5: Solve for x
    x = 21,651,473,958,060,724/209,123,273.85
  6. Step 6: Final answer
    x = 103,534,501.73

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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.