Home / 147,231,864.12-203,180,778.54-85,388,869.56

Finding the Fourth Proportional to 147,231,864.12, 203,180,778.54 and 85,388,869.56

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Solution

The fourth proportional to 147,231,864.12, 203,180,778.54 and 85,388,869.56 is: 117,837,107.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,231,864.12 : 203,180,778.54 = 85,388,869.56 : x
  2. Step 2: Convert to fraction form
    147,231,864.12/203,180,778.54 = 85,388,869.56/x
  3. Step 3: Cross multiply
    147,231,864.12x = 203,180,778.54 × 85,388,869.56
  4. Step 4: Simplify right side
    147,231,864.12x = 17,349,376,995,851,308
  5. Step 5: Solve for x
    x = 17,349,376,995,851,308/147,231,864.12
  6. Step 6: Final answer
    x = 117,837,107.47

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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.