Home / 12,918,948,503.78-19,378,422,733.77-3,104,296,115.78

Finding the Fourth Proportional to 12,918,948,503.78, 19,378,422,733.77 and 3,104,296,115.78

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Solution

The fourth proportional to 12,918,948,503.78, 19,378,422,733.77 and 3,104,296,115.78 is: 4,656,444,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918,948,503.78 : 19,378,422,733.77 = 3,104,296,115.78 : x
  2. Step 2: Convert to fraction form
    12,918,948,503.78/19,378,422,733.77 = 3,104,296,115.78/x
  3. Step 3: Cross multiply
    12,918,948,503.78x = 19,378,422,733.77 × 3,104,296,115.78
  4. Step 4: Simplify right side
    12,918,948,503.78x = 60,156,362,422,385,065,984
  5. Step 5: Solve for x
    x = 60,156,362,422,385,065,984/12,918,948,503.78
  6. Step 6: Final answer
    x = 4,656,444,168.41

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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.