Home / 56,463,121.20-84,694,681.80-18,128,510.40

Finding the Fourth Proportional to 56,463,121.20, 84,694,681.80 and 18,128,510.40

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Solution

The fourth proportional to 56,463,121.20, 84,694,681.80 and 18,128,510.40 is: 27,192,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,463,121.20 : 84,694,681.80 = 18,128,510.40 : x
  2. Step 2: Convert to fraction form
    56,463,121.20/84,694,681.80 = 18,128,510.40/x
  3. Step 3: Cross multiply
    56,463,121.20x = 84,694,681.80 × 18,128,510.40
  4. Step 4: Simplify right side
    56,463,121.20x = 1,535,388,419,835,990.50
  5. Step 5: Solve for x
    x = 1,535,388,419,835,990.50/56,463,121.20
  6. Step 6: Final answer
    x = 27,192,765.60

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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.