Home / 21,288,010.20-31,895,273.70-9,905,112.60

Finding the Fourth Proportional to 21,288,010.20, 31,895,273.70 and 9,905,112.60

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Solution

The fourth proportional to 21,288,010.20, 31,895,273.70 and 9,905,112.60 is: 14,840,573.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,288,010.20 : 31,895,273.70 = 9,905,112.60 : x
  2. Step 2: Convert to fraction form
    21,288,010.20/31,895,273.70 = 9,905,112.60/x
  3. Step 3: Cross multiply
    21,288,010.20x = 31,895,273.70 × 9,905,112.60
  4. Step 4: Simplify right side
    21,288,010.20x = 315,926,277,406,318.62
  5. Step 5: Solve for x
    x = 315,926,277,406,318.62/21,288,010.20
  6. Step 6: Final answer
    x = 14,840,573.38

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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.