Home / 308,791,365.78-426,139,489.11-167,668,534.27

Finding the Fourth Proportional to 308,791,365.78, 426,139,489.11 and 167,668,534.27

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Solution

The fourth proportional to 308,791,365.78, 426,139,489.11 and 167,668,534.27 is: 231,386,597.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,791,365.78 : 426,139,489.11 = 167,668,534.27 : x
  2. Step 2: Convert to fraction form
    308,791,365.78/426,139,489.11 = 167,668,534.27/x
  3. Step 3: Cross multiply
    308,791,365.78x = 426,139,489.11 × 167,668,534.27
  4. Step 4: Simplify right side
    308,791,365.78x = 71,450,183,534,801,760
  5. Step 5: Solve for x
    x = 71,450,183,534,801,760/308,791,365.78
  6. Step 6: Final answer
    x = 231,386,597.72

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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.