Home / 291,945,350.30-402,883,133.36-157,983,172.15

Finding the Fourth Proportional to 291,945,350.30, 402,883,133.36 and 157,983,172.15

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Solution

The fourth proportional to 291,945,350.30, 402,883,133.36 and 157,983,172.15 is: 218,015,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,945,350.30 : 402,883,133.36 = 157,983,172.15 : x
  2. Step 2: Convert to fraction form
    291,945,350.30/402,883,133.36 = 157,983,172.15/x
  3. Step 3: Cross multiply
    291,945,350.30x = 402,883,133.36 × 157,983,172.15
  4. Step 4: Simplify right side
    291,945,350.30x = 63,648,755,413,790,000
  5. Step 5: Solve for x
    x = 63,648,755,413,790,000/291,945,350.30
  6. Step 6: Final answer
    x = 218,015,992.88

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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.