Home / 308,791,743.68-426,140,009.88-167,668,912.15

Finding the Fourth Proportional to 308,791,743.68, 426,140,009.88 and 167,668,912.15

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Solution

The fourth proportional to 308,791,743.68, 426,140,009.88 and 167,668,912.15 is: 231,387,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,791,743.68 : 426,140,009.88 = 167,668,912.15 : x
  2. Step 2: Convert to fraction form
    308,791,743.68/426,140,009.88 = 167,668,912.15/x
  3. Step 3: Cross multiply
    308,791,743.68x = 426,140,009.88 × 167,668,912.15
  4. Step 4: Simplify right side
    308,791,743.68x = 71,450,431,877,200,816
  5. Step 5: Solve for x
    x = 71,450,431,877,200,816/308,791,743.68
  6. Step 6: Final answer
    x = 231,387,118.80

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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.