Home / 117,122,072.53-161,628,475.14-64,914,478.69

Finding the Fourth Proportional to 117,122,072.53, 161,628,475.14 and 64,914,478.69

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Solution

The fourth proportional to 117,122,072.53, 161,628,475.14 and 64,914,478.69 is: 89,581,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,122,072.53 : 161,628,475.14 = 64,914,478.69 : x
  2. Step 2: Convert to fraction form
    117,122,072.53/161,628,475.14 = 64,914,478.69/x
  3. Step 3: Cross multiply
    117,122,072.53x = 161,628,475.14 × 64,914,478.69
  4. Step 4: Simplify right side
    117,122,072.53x = 10,492,028,204,040,010
  5. Step 5: Solve for x
    x = 10,492,028,204,040,010/117,122,072.53
  6. Step 6: Final answer
    x = 89,581,988.93

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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.