Home / 167,638,131.32-251,457,266.46-75,414,148.28

Finding the Fourth Proportional to 167,638,131.32, 251,457,266.46 and 75,414,148.28

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Solution

The fourth proportional to 167,638,131.32, 251,457,266.46 and 75,414,148.28 is: 113,121,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,638,131.32 : 251,457,266.46 = 75,414,148.28 : x
  2. Step 2: Convert to fraction form
    167,638,131.32/251,457,266.46 = 75,414,148.28/x
  3. Step 3: Cross multiply
    167,638,131.32x = 251,457,266.46 × 75,414,148.28
  4. Step 4: Simplify right side
    167,638,131.32x = 18,963,435,578,897,912
  5. Step 5: Solve for x
    x = 18,963,435,578,897,912/167,638,131.32
  6. Step 6: Final answer
    x = 113,121,253.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.