Home / 55,147,628.70-82,721,443.05-16,809,081.30

Finding the Fourth Proportional to 55,147,628.70, 82,721,443.05 and 16,809,081.30

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Solution

The fourth proportional to 55,147,628.70, 82,721,443.05 and 16,809,081.30 is: 25,213,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,147,628.70 : 82,721,443.05 = 16,809,081.30 : x
  2. Step 2: Convert to fraction form
    55,147,628.70/82,721,443.05 = 16,809,081.30/x
  3. Step 3: Cross multiply
    55,147,628.70x = 82,721,443.05 × 16,809,081.30
  4. Step 4: Simplify right side
    55,147,628.70x = 1,390,471,461,480,770
  5. Step 5: Solve for x
    x = 1,390,471,461,480,770/55,147,628.70
  6. Step 6: Final answer
    x = 25,213,621.95

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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.