Home / 681,439,353.23-940,384,448.75-380,024,992.14

Finding the Fourth Proportional to 681,439,353.23, 940,384,448.75 and 380,024,992.14

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Solution

The fourth proportional to 681,439,353.23, 940,384,448.75 and 380,024,992.14 is: 524,433,452.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,439,353.23 : 940,384,448.75 = 380,024,992.14 : x
  2. Step 2: Convert to fraction form
    681,439,353.23/940,384,448.75 = 380,024,992.14/x
  3. Step 3: Cross multiply
    681,439,353.23x = 940,384,448.75 × 380,024,992.14
  4. Step 4: Simplify right side
    681,439,353.23x = 357,369,592,744,796,992
  5. Step 5: Solve for x
    x = 357,369,592,744,796,992/681,439,353.23
  6. Step 6: Final answer
    x = 524,433,452.59

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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.