Home / 20,954,847,940.50-28,917,807,614.46-11,922,605,827.50

Finding the Fourth Proportional to 20,954,847,940.50, 28,917,807,614.46 and 11,922,605,827.50

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Solution

The fourth proportional to 20,954,847,940.50, 28,917,807,614.46 and 11,922,605,827.50 is: 16,453,262,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954,847,940.50 : 28,917,807,614.46 = 11,922,605,827.50 : x
  2. Step 2: Convert to fraction form
    20,954,847,940.50/28,917,807,614.46 = 11,922,605,827.50/x
  3. Step 3: Cross multiply
    20,954,847,940.50x = 28,917,807,614.46 × 11,922,605,827.50
  4. Step 4: Simplify right side
    20,954,847,940.50x = 344,775,621,582,684,684,288
  5. Step 5: Solve for x
    x = 344,775,621,582,684,684,288/20,954,847,940.50
  6. Step 6: Final answer
    x = 16,453,262,870.80

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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.