Home / 18,723,020.20-28,084,530.30-5,259,848.20

Finding the Fourth Proportional to 18,723,020.20, 28,084,530.30 and 5,259,848.20

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Solution

The fourth proportional to 18,723,020.20, 28,084,530.30 and 5,259,848.20 is: 7,889,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,020.20 : 28,084,530.30 = 5,259,848.20 : x
  2. Step 2: Convert to fraction form
    18,723,020.20/28,084,530.30 = 5,259,848.20/x
  3. Step 3: Cross multiply
    18,723,020.20x = 28,084,530.30 × 5,259,848.20
  4. Step 4: Simplify right side
    18,723,020.20x = 147,720,366,146,300.47
  5. Step 5: Solve for x
    x = 147,720,366,146,300.47/18,723,020.20
  6. Step 6: Final answer
    x = 7,889,772.30

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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.