Home / 20,761,059.12-31,141,475.40-8,464,974.20

Finding the Fourth Proportional to 20,761,059.12, 31,141,475.40 and 8,464,974.20

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Solution

The fourth proportional to 20,761,059.12, 31,141,475.40 and 8,464,974.20 is: 12,697,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761,059.12 : 31,141,475.40 = 8,464,974.20 : x
  2. Step 2: Convert to fraction form
    20,761,059.12/31,141,475.40 = 8,464,974.20/x
  3. Step 3: Cross multiply
    20,761,059.12x = 31,141,475.40 × 8,464,974.20
  4. Step 4: Simplify right side
    20,761,059.12x = 263,611,785,972,962.97
  5. Step 5: Solve for x
    x = 263,611,785,972,962.97/20,761,059.12
  6. Step 6: Final answer
    x = 12,697,415.12

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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.