Home / 220,173,431.80-330,260,147.70-66,819,242.20

Finding the Fourth Proportional to 220,173,431.80, 330,260,147.70 and 66,819,242.20

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Solution

The fourth proportional to 220,173,431.80, 330,260,147.70 and 66,819,242.20 is: 100,228,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,173,431.80 : 330,260,147.70 = 66,819,242.20 : x
  2. Step 2: Convert to fraction form
    220,173,431.80/330,260,147.70 = 66,819,242.20/x
  3. Step 3: Cross multiply
    220,173,431.80x = 330,260,147.70 × 66,819,242.20
  4. Step 4: Simplify right side
    220,173,431.80x = 22,067,732,798,174,072
  5. Step 5: Solve for x
    x = 22,067,732,798,174,072/220,173,431.80
  6. Step 6: Final answer
    x = 100,228,863.30

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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.