Home / 21,205,564,260.85-29,263,767,069.77-11,689,906,965.49

Finding the Fourth Proportional to 21,205,564,260.85, 29,263,767,069.77 and 11,689,906,965.49

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Solution

The fourth proportional to 21,205,564,260.85, 29,263,767,069.77 and 11,689,906,965.49 is: 16,132,120,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,564,260.85 : 29,263,767,069.77 = 11,689,906,965.49 : x
  2. Step 2: Convert to fraction form
    21,205,564,260.85/29,263,767,069.77 = 11,689,906,965.49/x
  3. Step 3: Cross multiply
    21,205,564,260.85x = 29,263,767,069.77 × 11,689,906,965.49
  4. Step 4: Simplify right side
    21,205,564,260.85x = 342,090,714,505,381,216,256
  5. Step 5: Solve for x
    x = 342,090,714,505,381,216,256/21,205,564,260.85
  6. Step 6: Final answer
    x = 16,132,120,338.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.