Home / 31,455,493.45-43,386,220.35-20,996,236.35

Finding the Fourth Proportional to 31,455,493.45, 43,386,220.35 and 20,996,236.35

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Solution

The fourth proportional to 31,455,493.45, 43,386,220.35 and 20,996,236.35 is: 28,959,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455,493.45 : 43,386,220.35 = 20,996,236.35 : x
  2. Step 2: Convert to fraction form
    31,455,493.45/43,386,220.35 = 20,996,236.35/x
  3. Step 3: Cross multiply
    31,455,493.45x = 43,386,220.35 × 20,996,236.35
  4. Step 4: Simplify right side
    31,455,493.45x = 910,947,336,801,779.88
  5. Step 5: Solve for x
    x = 910,947,336,801,779.88/31,455,493.45
  6. Step 6: Final answer
    x = 28,959,880.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.