Home / 20,733,139.70-31,099,709.56-5,587,071.20

Finding the Fourth Proportional to 20,733,139.70, 31,099,709.56 and 5,587,071.20

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Solution

The fourth proportional to 20,733,139.70, 31,099,709.56 and 5,587,071.20 is: 8,380,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,139.70 : 31,099,709.56 = 5,587,071.20 : x
  2. Step 2: Convert to fraction form
    20,733,139.70/31,099,709.56 = 5,587,071.20/x
  3. Step 3: Cross multiply
    20,733,139.70x = 31,099,709.56 × 5,587,071.20
  4. Step 4: Simplify right side
    20,733,139.70x = 173,756,291,611,040.66
  5. Step 5: Solve for x
    x = 173,756,291,611,040.66/20,733,139.70
  6. Step 6: Final answer
    x = 8,380,606.80

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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.