Home / 20,736,084.40-31,104,126.60-7,272,912.40

Finding the Fourth Proportional to 20,736,084.40, 31,104,126.60 and 7,272,912.40

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Solution

The fourth proportional to 20,736,084.40, 31,104,126.60 and 7,272,912.40 is: 10,909,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,084.40 : 31,104,126.60 = 7,272,912.40 : x
  2. Step 2: Convert to fraction form
    20,736,084.40/31,104,126.60 = 7,272,912.40/x
  3. Step 3: Cross multiply
    20,736,084.40x = 31,104,126.60 × 7,272,912.40
  4. Step 4: Simplify right side
    20,736,084.40x = 226,217,588,040,309.88
  5. Step 5: Solve for x
    x = 226,217,588,040,309.88/20,736,084.40
  6. Step 6: Final answer
    x = 10,909,368.60

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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.