Home / 20,101,807.21-30,156,073.34-15,783,682.63

Finding the Fourth Proportional to 20,101,807.21, 30,156,073.34 and 15,783,682.63

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Solution

The fourth proportional to 20,101,807.21, 30,156,073.34 and 15,783,682.63 is: 23,678,164.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,807.21 : 30,156,073.34 = 15,783,682.63 : x
  2. Step 2: Convert to fraction form
    20,101,807.21/30,156,073.34 = 15,783,682.63/x
  3. Step 3: Cross multiply
    20,101,807.21x = 30,156,073.34 × 15,783,682.63
  4. Step 4: Simplify right side
    20,101,807.21x = 475,973,890,965,564.12
  5. Step 5: Solve for x
    x = 475,973,890,965,564.12/20,101,807.21
  6. Step 6: Final answer
    x = 23,678,164.16

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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.