Home / 18,724,538.30-28,086,807.45-12,347,246.30

Finding the Fourth Proportional to 18,724,538.30, 28,086,807.45 and 12,347,246.30

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Solution

The fourth proportional to 18,724,538.30, 28,086,807.45 and 12,347,246.30 is: 18,520,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724,538.30 : 28,086,807.45 = 12,347,246.30 : x
  2. Step 2: Convert to fraction form
    18,724,538.30/28,086,807.45 = 12,347,246.30/x
  3. Step 3: Cross multiply
    18,724,538.30x = 28,086,807.45 × 12,347,246.30
  4. Step 4: Simplify right side
    18,724,538.30x = 346,794,729,365,824.94
  5. Step 5: Solve for x
    x = 346,794,729,365,824.94/18,724,538.30
  6. Step 6: Final answer
    x = 18,520,869.45

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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.