Home / 54,128,284.80-81,192,427.20-13,738,768.80

Finding the Fourth Proportional to 54,128,284.80, 81,192,427.20 and 13,738,768.80

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Solution

The fourth proportional to 54,128,284.80, 81,192,427.20 and 13,738,768.80 is: 20,608,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,284.80 : 81,192,427.20 = 13,738,768.80 : x
  2. Step 2: Convert to fraction form
    54,128,284.80/81,192,427.20 = 13,738,768.80/x
  3. Step 3: Cross multiply
    54,128,284.80x = 81,192,427.20 × 13,738,768.80
  4. Step 4: Simplify right side
    54,128,284.80x = 1,115,483,985,611,631.50
  5. Step 5: Solve for x
    x = 1,115,483,985,611,631.50/54,128,284.80
  6. Step 6: Final answer
    x = 20,608,153.20

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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.