Home / 216,968,754.72-299,419,307.91-127,680,438.87

Finding the Fourth Proportional to 216,968,754.72, 299,419,307.91 and 127,680,438.87

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Solution

The fourth proportional to 216,968,754.72, 299,419,307.91 and 127,680,438.87 is: 176,200,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,968,754.72 : 299,419,307.91 = 127,680,438.87 : x
  2. Step 2: Convert to fraction form
    216,968,754.72/299,419,307.91 = 127,680,438.87/x
  3. Step 3: Cross multiply
    216,968,754.72x = 299,419,307.91 × 127,680,438.87
  4. Step 4: Simplify right side
    216,968,754.72x = 38,229,988,640,100,464
  5. Step 5: Solve for x
    x = 38,229,988,640,100,464/216,968,754.72
  6. Step 6: Final answer
    x = 176,200,433.51

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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.