Home / 129,797,257,679.64-179,121,267,304.11-71,926,604,156.54

Finding the Fourth Proportional to 129,797,257,679.64, 179,121,267,304.11 and 71,926,604,156.54

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Solution

The fourth proportional to 129,797,257,679.64, 179,121,267,304.11 and 71,926,604,156.54 is: 99,259,296,534.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,797,257,679.64 : 179,121,267,304.11 = 71,926,604,156.54 : x
  2. Step 2: Convert to fraction form
    129,797,257,679.64/179,121,267,304.11 = 71,926,604,156.54/x
  3. Step 3: Cross multiply
    129,797,257,679.64x = 179,121,267,304.11 × 71,926,604,156.54
  4. Step 4: Simplify right side
    129,797,257,679.64x = 12,883,584,489,400,509,136,896
  5. Step 5: Solve for x
    x = 12,883,584,489,400,509,136,896/129,797,257,679.64
  6. Step 6: Final answer
    x = 99,259,296,534.59

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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.