Home / 55,247,121.20-82,870,681.80-18,843,412.70

Finding the Fourth Proportional to 55,247,121.20, 82,870,681.80 and 18,843,412.70

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Solution

The fourth proportional to 55,247,121.20, 82,870,681.80 and 18,843,412.70 is: 28,265,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,247,121.20 : 82,870,681.80 = 18,843,412.70 : x
  2. Step 2: Convert to fraction form
    55,247,121.20/82,870,681.80 = 18,843,412.70/x
  3. Step 3: Cross multiply
    55,247,121.20x = 82,870,681.80 × 18,843,412.70
  4. Step 4: Simplify right side
    55,247,121.20x = 1,561,566,457,887,778.75
  5. Step 5: Solve for x
    x = 1,561,566,457,887,778.75/55,247,121.20
  6. Step 6: Final answer
    x = 28,265,119.05

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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.