Home / 20,856,145.80-31,284,218.70-17,706,865.80

Finding the Fourth Proportional to 20,856,145.80, 31,284,218.70 and 17,706,865.80

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Solution

The fourth proportional to 20,856,145.80, 31,284,218.70 and 17,706,865.80 is: 26,560,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856,145.80 : 31,284,218.70 = 17,706,865.80 : x
  2. Step 2: Convert to fraction form
    20,856,145.80/31,284,218.70 = 17,706,865.80/x
  3. Step 3: Cross multiply
    20,856,145.80x = 31,284,218.70 × 17,706,865.80
  4. Step 4: Simplify right side
    20,856,145.80x = 553,945,462,178,750.50
  5. Step 5: Solve for x
    x = 553,945,462,178,750.50/20,856,145.80
  6. Step 6: Final answer
    x = 26,560,298.70

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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.