Home / 12,378,963,612.20-18,568,445,418.30-11,236,152,885.80

Finding the Fourth Proportional to 12,378,963,612.20, 18,568,445,418.30 and 11,236,152,885.80

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Solution

The fourth proportional to 12,378,963,612.20, 18,568,445,418.30 and 11,236,152,885.80 is: 16,854,229,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,963,612.20 : 18,568,445,418.30 = 11,236,152,885.80 : x
  2. Step 2: Convert to fraction form
    12,378,963,612.20/18,568,445,418.30 = 11,236,152,885.80/x
  3. Step 3: Cross multiply
    12,378,963,612.20x = 18,568,445,418.30 × 11,236,152,885.80
  4. Step 4: Simplify right side
    12,378,963,612.20x = 208,637,891,571,651,313,664
  5. Step 5: Solve for x
    x = 208,637,891,571,651,313,664/12,378,963,612.20
  6. Step 6: Final answer
    x = 16,854,229,328.70

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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.