Home / 20,760,983.20-31,141,474.80-7,296,061.60

Finding the Fourth Proportional to 20,760,983.20, 31,141,474.80 and 7,296,061.60

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Solution

The fourth proportional to 20,760,983.20, 31,141,474.80 and 7,296,061.60 is: 10,944,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,983.20 : 31,141,474.80 = 7,296,061.60 : x
  2. Step 2: Convert to fraction form
    20,760,983.20/31,141,474.80 = 7,296,061.60/x
  3. Step 3: Cross multiply
    20,760,983.20x = 31,141,474.80 × 7,296,061.60
  4. Step 4: Simplify right side
    20,760,983.20x = 227,210,118,455,647.69
  5. Step 5: Solve for x
    x = 227,210,118,455,647.69/20,760,983.20
  6. Step 6: Final answer
    x = 10,944,092.40

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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.