Home / 289,170,796.70-399,056,171.82-157,012,048.82

Finding the Fourth Proportional to 289,170,796.70, 399,056,171.82 and 157,012,048.82

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Solution

The fourth proportional to 289,170,796.70, 399,056,171.82 and 157,012,048.82 is: 216,676,883.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,170,796.70 : 399,056,171.82 = 157,012,048.82 : x
  2. Step 2: Convert to fraction form
    289,170,796.70/399,056,171.82 = 157,012,048.82/x
  3. Step 3: Cross multiply
    289,170,796.70x = 399,056,171.82 × 157,012,048.82
  4. Step 4: Simplify right side
    289,170,796.70x = 62,656,627,131,724,144
  5. Step 5: Solve for x
    x = 62,656,627,131,724,144/289,170,796.70
  6. Step 6: Final answer
    x = 216,676,883.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.