Home / 512,645,901.36-707,436,723.33-300,949,327.81

Finding the Fourth Proportional to 512,645,901.36, 707,436,723.33 and 300,949,327.81

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Solution

The fourth proportional to 512,645,901.36, 707,436,723.33 and 300,949,327.81 is: 415,301,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,645,901.36 : 707,436,723.33 = 300,949,327.81 : x
  2. Step 2: Convert to fraction form
    512,645,901.36/707,436,723.33 = 300,949,327.81/x
  3. Step 3: Cross multiply
    512,645,901.36x = 707,436,723.33 × 300,949,327.81
  4. Step 4: Simplify right side
    512,645,901.36x = 212,902,606,354,272,448
  5. Step 5: Solve for x
    x = 212,902,606,354,272,448/512,645,901.36
  6. Step 6: Final answer
    x = 415,301,489.37

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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.