Home / 51,307,829.78-76,961,744.60-12,969,343.89

Finding the Fourth Proportional to 51,307,829.78, 76,961,744.60 and 12,969,343.89

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Solution

The fourth proportional to 51,307,829.78, 76,961,744.60 and 12,969,343.89 is: 19,454,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,307,829.78 : 76,961,744.60 = 12,969,343.89 : x
  2. Step 2: Convert to fraction form
    51,307,829.78/76,961,744.60 = 12,969,343.89/x
  3. Step 3: Cross multiply
    51,307,829.78x = 76,961,744.60 × 12,969,343.89
  4. Step 4: Simplify right side
    51,307,829.78x = 998,143,332,026,903.75
  5. Step 5: Solve for x
    x = 998,143,332,026,903.75/51,307,829.78
  6. Step 6: Final answer
    x = 19,454,015.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.