Home / 20,269,918.71-27,975,270.88-12,428,044.04

Finding the Fourth Proportional to 20,269,918.71, 27,975,270.88 and 12,428,044.04

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Solution

The fourth proportional to 20,269,918.71, 27,975,270.88 and 12,428,044.04 is: 17,152,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269,918.71 : 27,975,270.88 = 12,428,044.04 : x
  2. Step 2: Convert to fraction form
    20,269,918.71/27,975,270.88 = 12,428,044.04/x
  3. Step 3: Cross multiply
    20,269,918.71x = 27,975,270.88 × 12,428,044.04
  4. Step 4: Simplify right side
    20,269,918.71x = 347,677,898,613,042.81
  5. Step 5: Solve for x
    x = 347,677,898,613,042.81/20,269,918.71
  6. Step 6: Final answer
    x = 17,152,407.15

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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.