Home / 20,883,519,765.84-28,819,260,385.80-11,368,143,751.49

Finding the Fourth Proportional to 20,883,519,765.84, 28,819,260,385.80 and 11,368,143,751.49

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Solution

The fourth proportional to 20,883,519,765.84, 28,819,260,385.80 and 11,368,143,751.49 is: 15,688,040,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,519,765.84 : 28,819,260,385.80 = 11,368,143,751.49 : x
  2. Step 2: Convert to fraction form
    20,883,519,765.84/28,819,260,385.80 = 11,368,143,751.49/x
  3. Step 3: Cross multiply
    20,883,519,765.84x = 28,819,260,385.80 × 11,368,143,751.49
  4. Step 4: Simplify right side
    20,883,519,765.84x = 327,621,494,877,194,616,832
  5. Step 5: Solve for x
    x = 327,621,494,877,194,616,832/20,883,519,765.84
  6. Step 6: Final answer
    x = 15,688,040,069.43

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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.