Home / 101,020,238.68-139,445,839.42-66,215,171.16

Finding the Fourth Proportional to 101,020,238.68, 139,445,839.42 and 66,215,171.16

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Solution

The fourth proportional to 101,020,238.68, 139,445,839.42 and 66,215,171.16 is: 91,401,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,020,238.68 : 139,445,839.42 = 66,215,171.16 : x
  2. Step 2: Convert to fraction form
    101,020,238.68/139,445,839.42 = 66,215,171.16/x
  3. Step 3: Cross multiply
    101,020,238.68x = 139,445,839.42 × 66,215,171.16
  4. Step 4: Simplify right side
    101,020,238.68x = 9,233,430,124,745,174
  5. Step 5: Solve for x
    x = 9,233,430,124,745,174/101,020,238.68
  6. Step 6: Final answer
    x = 91,401,784.88

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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.