Home / 20,736,040.40-31,104,060.60-20,610,069.20

Finding the Fourth Proportional to 20,736,040.40, 31,104,060.60 and 20,610,069.20

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Solution

The fourth proportional to 20,736,040.40, 31,104,060.60 and 20,610,069.20 is: 30,915,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,040.40 : 31,104,060.60 = 20,610,069.20 : x
  2. Step 2: Convert to fraction form
    20,736,040.40/31,104,060.60 = 20,610,069.20/x
  3. Step 3: Cross multiply
    20,736,040.40x = 31,104,060.60 × 20,610,069.20
  4. Step 4: Simplify right side
    20,736,040.40x = 641,056,841,366,993.50
  5. Step 5: Solve for x
    x = 641,056,841,366,993.50/20,736,040.40
  6. Step 6: Final answer
    x = 30,915,103.80

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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.