Home / 55,012,129.65-82,520,935.47-20,936,116.53

Finding the Fourth Proportional to 55,012,129.65, 82,520,935.47 and 20,936,116.53

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Solution

The fourth proportional to 55,012,129.65, 82,520,935.47 and 20,936,116.53 is: 31,405,217.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012,129.65 : 82,520,935.47 = 20,936,116.53 : x
  2. Step 2: Convert to fraction form
    55,012,129.65/82,520,935.47 = 20,936,116.53/x
  3. Step 3: Cross multiply
    55,012,129.65x = 82,520,935.47 × 20,936,116.53
  4. Step 4: Simplify right side
    55,012,129.65x = 1,727,667,921,164,530.50
  5. Step 5: Solve for x
    x = 1,727,667,921,164,530.50/55,012,129.65
  6. Step 6: Final answer
    x = 31,405,217.94

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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.