Home / 20,631,647.20-30,947,470.80-11,065,709.20

Finding the Fourth Proportional to 20,631,647.20, 30,947,470.80 and 11,065,709.20

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Solution

The fourth proportional to 20,631,647.20, 30,947,470.80 and 11,065,709.20 is: 16,598,563.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,647.20 : 30,947,470.80 = 11,065,709.20 : x
  2. Step 2: Convert to fraction form
    20,631,647.20/30,947,470.80 = 11,065,709.20/x
  3. Step 3: Cross multiply
    20,631,647.20x = 30,947,470.80 × 11,065,709.20
  4. Step 4: Simplify right side
    20,631,647.20x = 342,455,712,348,291.38
  5. Step 5: Solve for x
    x = 342,455,712,348,291.38/20,631,647.20
  6. Step 6: Final answer
    x = 16,598,563.80

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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.