Home / 643,808,693.25-888,405,343.74-365,350,215.87

Finding the Fourth Proportional to 643,808,693.25, 888,405,343.74 and 365,350,215.87

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Solution

The fourth proportional to 643,808,693.25, 888,405,343.74 and 365,350,215.87 is: 504,154,553.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,808,693.25 : 888,405,343.74 = 365,350,215.87 : x
  2. Step 2: Convert to fraction form
    643,808,693.25/888,405,343.74 = 365,350,215.87/x
  3. Step 3: Cross multiply
    643,808,693.25x = 888,405,343.74 × 365,350,215.87
  4. Step 4: Simplify right side
    643,808,693.25x = 324,579,084,115,470,592
  5. Step 5: Solve for x
    x = 324,579,084,115,470,592/643,808,693.25
  6. Step 6: Final answer
    x = 504,154,553.24

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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.