Home / 56,168,161.14-77,512,167.78-31,388,348.16

Finding the Fourth Proportional to 56,168,161.14, 77,512,167.78 and 31,388,348.16

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Solution

The fourth proportional to 56,168,161.14, 77,512,167.78 and 31,388,348.16 is: 43,315,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,168,161.14 : 77,512,167.78 = 31,388,348.16 : x
  2. Step 2: Convert to fraction form
    56,168,161.14/77,512,167.78 = 31,388,348.16/x
  3. Step 3: Cross multiply
    56,168,161.14x = 77,512,167.78 × 31,388,348.16
  4. Step 4: Simplify right side
    56,168,161.14x = 2,432,978,908,914,974.50
  5. Step 5: Solve for x
    x = 2,432,978,908,914,974.50/56,168,161.14
  6. Step 6: Final answer
    x = 43,315,979.37

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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.