Home / 12,475,905.80-18,711,234.30-5,287,674.20

Finding the Fourth Proportional to 12,475,905.80, 18,711,234.30 and 5,287,674.20

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Solution

The fourth proportional to 12,475,905.80, 18,711,234.30 and 5,287,674.20 is: 7,930,399.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475,905.80 : 18,711,234.30 = 5,287,674.20 : x
  2. Step 2: Convert to fraction form
    12,475,905.80/18,711,234.30 = 5,287,674.20/x
  3. Step 3: Cross multiply
    12,475,905.80x = 18,711,234.30 × 5,287,674.20
  4. Step 4: Simplify right side
    12,475,905.80x = 98,938,910,858,265.06
  5. Step 5: Solve for x
    x = 98,938,910,858,265.06/12,475,905.80
  6. Step 6: Final answer
    x = 7,930,399.00

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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.