Home / 18,725,812.20-28,088,718.30-13,052,442.60

Finding the Fourth Proportional to 18,725,812.20, 28,088,718.30 and 13,052,442.60

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Solution

The fourth proportional to 18,725,812.20, 28,088,718.30 and 13,052,442.60 is: 19,578,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725,812.20 : 28,088,718.30 = 13,052,442.60 : x
  2. Step 2: Convert to fraction form
    18,725,812.20/28,088,718.30 = 13,052,442.60/x
  3. Step 3: Cross multiply
    18,725,812.20x = 28,088,718.30 × 13,052,442.60
  4. Step 4: Simplify right side
    18,725,812.20x = 366,626,383,318,319.56
  5. Step 5: Solve for x
    x = 366,626,383,318,319.56/18,725,812.20
  6. Step 6: Final answer
    x = 19,578,663.90

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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.