Home / 18,727,285.80-28,085,096.70-7,371,215.40

Finding the Fourth Proportional to 18,727,285.80, 28,085,096.70 and 7,371,215.40

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Solution

The fourth proportional to 18,727,285.80, 28,085,096.70 and 7,371,215.40 is: 11,054,527.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727,285.80 : 28,085,096.70 = 7,371,215.40 : x
  2. Step 2: Convert to fraction form
    18,727,285.80/28,085,096.70 = 7,371,215.40/x
  3. Step 3: Cross multiply
    18,727,285.80x = 28,085,096.70 × 7,371,215.40
  4. Step 4: Simplify right side
    18,727,285.80x = 207,021,297,305,529.19
  5. Step 5: Solve for x
    x = 207,021,297,305,529.19/18,727,285.80
  6. Step 6: Final answer
    x = 11,054,527.58

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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.