Home / 308,791,743.46-426,140,009.57-167,668,911.92

Finding the Fourth Proportional to 308,791,743.46, 426,140,009.57 and 167,668,911.92

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Solution

The fourth proportional to 308,791,743.46, 426,140,009.57 and 167,668,911.92 is: 231,387,118.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,791,743.46 : 426,140,009.57 = 167,668,911.92 : x
  2. Step 2: Convert to fraction form
    308,791,743.46/426,140,009.57 = 167,668,911.92/x
  3. Step 3: Cross multiply
    308,791,743.46x = 426,140,009.57 × 167,668,911.92
  4. Step 4: Simplify right side
    308,791,743.46x = 71,450,431,731,664,816
  5. Step 5: Solve for x
    x = 71,450,431,731,664,816/308,791,743.46
  6. Step 6: Final answer
    x = 231,387,118.49

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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.