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Finding the Fourth Proportional to 681,229,920.36, 940,097,666.04 and 367,964,133.96

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Solution

The fourth proportional to 681,229,920.36, 940,097,666.04 and 367,964,133.96 is: 507,790,707.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,229,920.36 : 940,097,666.04 = 367,964,133.96 : x
  2. Step 2: Convert to fraction form
    681,229,920.36/940,097,666.04 = 367,964,133.96/x
  3. Step 3: Cross multiply
    681,229,920.36x = 940,097,666.04 × 367,964,133.96
  4. Step 4: Simplify right side
    681,229,920.36x = 345,922,223,522,225,856
  5. Step 5: Solve for x
    x = 345,922,223,522,225,856/681,229,920.36
  6. Step 6: Final answer
    x = 507,790,707.93

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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.