Home / 20,129,807.80-30,159,282.30-17,295,455.80

Finding the Fourth Proportional to 20,129,807.80, 30,159,282.30 and 17,295,455.80

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Solution

The fourth proportional to 20,129,807.80, 30,159,282.30 and 17,295,455.80 is: 25,912,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,807.80 : 30,159,282.30 = 17,295,455.80 : x
  2. Step 2: Convert to fraction form
    20,129,807.80/30,159,282.30 = 17,295,455.80/x
  3. Step 3: Cross multiply
    20,129,807.80x = 30,159,282.30 × 17,295,455.80
  4. Step 4: Simplify right side
    20,129,807.80x = 521,618,533,979,372.38
  5. Step 5: Solve for x
    x = 521,618,533,979,372.38/20,129,807.80
  6. Step 6: Final answer
    x = 25,912,742.89

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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.