Home / 12,131,729,715.30-18,199,610,112.15-4,770,980,556.90

Finding the Fourth Proportional to 12,131,729,715.30, 18,199,610,112.15 and 4,770,980,556.90

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Solution

The fourth proportional to 12,131,729,715.30, 18,199,610,112.15 and 4,770,980,556.90 is: 7,157,263,475.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,729,715.30 : 18,199,610,112.15 = 4,770,980,556.90 : x
  2. Step 2: Convert to fraction form
    12,131,729,715.30/18,199,610,112.15 = 4,770,980,556.90/x
  3. Step 3: Cross multiply
    12,131,729,715.30x = 18,199,610,112.15 × 4,770,980,556.90
  4. Step 4: Simplify right side
    12,131,729,715.30x = 86,829,985,988,228,284,416
  5. Step 5: Solve for x
    x = 86,829,985,988,228,284,416/12,131,729,715.30
  6. Step 6: Final answer
    x = 7,157,263,475.69

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1.5x scale

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.