Home / 12,811,283,691.80-19,219,823,220.90-6,915,716,385.44

Finding the Fourth Proportional to 12,811,283,691.80, 19,219,823,220.90 and 6,915,716,385.44

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Solution

The fourth proportional to 12,811,283,691.80, 19,219,823,220.90 and 6,915,716,385.44 is: 10,375,138,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811,283,691.80 : 19,219,823,220.90 = 6,915,716,385.44 : x
  2. Step 2: Convert to fraction form
    12,811,283,691.80/19,219,823,220.90 = 6,915,716,385.44/x
  3. Step 3: Cross multiply
    12,811,283,691.80x = 19,219,823,220.90 × 6,915,716,385.44
  4. Step 4: Simplify right side
    12,811,283,691.80x = 132,918,846,374,038,323,200
  5. Step 5: Solve for x
    x = 132,918,846,374,038,323,200/12,811,283,691.80
  6. Step 6: Final answer
    x = 10,375,138,789.50

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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.