Home / 12,811,306,486.80-19,219,857,462-6,915,739,188

Finding the Fourth Proportional to 12,811,306,486.80, 19,219,857,462 and 6,915,739,188

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Solution

The fourth proportional to 12,811,306,486.80, 19,219,857,462 and 6,915,739,188 is: 10,375,173,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811,306,486.80 : 19,219,857,462 = 6,915,739,188 : x
  2. Step 2: Convert to fraction form
    12,811,306,486.80/19,219,857,462 = 6,915,739,188/x
  3. Step 3: Cross multiply
    12,811,306,486.80x = 19,219,857,462 × 6,915,739,188
  4. Step 4: Simplify right side
    12,811,306,486.80x = 132,919,521,437,727,621,120
  5. Step 5: Solve for x
    x = 132,919,521,437,727,621,120/12,811,306,486.80
  6. Step 6: Final answer
    x = 10,375,173,021.95

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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.