Home / 9,419,919,330.78-12,999,575,846.61-5,190,982,551.09

Finding the Fourth Proportional to 9,419,919,330.78, 12,999,575,846.61 and 5,190,982,551.09

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Solution

The fourth proportional to 9,419,919,330.78, 12,999,575,846.61 and 5,190,982,551.09 is: 7,163,603,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419,919,330.78 : 12,999,575,846.61 = 5,190,982,551.09 : x
  2. Step 2: Convert to fraction form
    9,419,919,330.78/12,999,575,846.61 = 5,190,982,551.09/x
  3. Step 3: Cross multiply
    9,419,919,330.78x = 12,999,575,846.61 × 5,190,982,551.09
  4. Step 4: Simplify right side
    9,419,919,330.78x = 67,480,571,391,323,529,216
  5. Step 5: Solve for x
    x = 67,480,571,391,323,529,216/9,419,919,330.78
  6. Step 6: Final answer
    x = 7,163,603,956.86

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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.