Home / 129,402,404.12-178,598,383.44-76,476,950.66

Finding the Fourth Proportional to 129,402,404.12, 178,598,383.44 and 76,476,950.66

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Solution

The fourth proportional to 129,402,404.12, 178,598,383.44 and 76,476,950.66 is: 105,551,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,402,404.12 : 178,598,383.44 = 76,476,950.66 : x
  2. Step 2: Convert to fraction form
    129,402,404.12/178,598,383.44 = 76,476,950.66/x
  3. Step 3: Cross multiply
    129,402,404.12x = 178,598,383.44 × 76,476,950.66
  4. Step 4: Simplify right side
    129,402,404.12x = 13,658,659,758,296,640
  5. Step 5: Solve for x
    x = 13,658,659,758,296,640/129,402,404.12
  6. Step 6: Final answer
    x = 105,551,823.79

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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.