Home / 25,185,981.20-37,715,986.20-20,147,133.20

Finding the Fourth Proportional to 25,185,981.20, 37,715,986.20 and 20,147,133.20

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Solution

The fourth proportional to 25,185,981.20, 37,715,986.20 and 20,147,133.20 is: 30,170,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,185,981.20 : 37,715,986.20 = 20,147,133.20 : x
  2. Step 2: Convert to fraction form
    25,185,981.20/37,715,986.20 = 20,147,133.20/x
  3. Step 3: Cross multiply
    25,185,981.20x = 37,715,986.20 × 20,147,133.20
  4. Step 4: Simplify right side
    25,185,981.20x = 759,868,997,740,761.88
  5. Step 5: Solve for x
    x = 759,868,997,740,761.88/25,185,981.20
  6. Step 6: Final answer
    x = 30,170,315.45

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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.