Home / 20,915,299.20-31,372,948.80-14,538,007.20

Finding the Fourth Proportional to 20,915,299.20, 31,372,948.80 and 14,538,007.20

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Solution

The fourth proportional to 20,915,299.20, 31,372,948.80 and 14,538,007.20 is: 21,807,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,299.20 : 31,372,948.80 = 14,538,007.20 : x
  2. Step 2: Convert to fraction form
    20,915,299.20/31,372,948.80 = 14,538,007.20/x
  3. Step 3: Cross multiply
    20,915,299.20x = 31,372,948.80 × 14,538,007.20
  4. Step 4: Simplify right side
    20,915,299.20x = 456,100,155,539,631.38
  5. Step 5: Solve for x
    x = 456,100,155,539,631.38/20,915,299.20
  6. Step 6: Final answer
    x = 21,807,010.80

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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.