Home / 20,763,487.80-31,145,231.70-5,617,419.30

Finding the Fourth Proportional to 20,763,487.80, 31,145,231.70 and 5,617,419.30

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Solution

The fourth proportional to 20,763,487.80, 31,145,231.70 and 5,617,419.30 is: 8,426,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,487.80 : 31,145,231.70 = 5,617,419.30 : x
  2. Step 2: Convert to fraction form
    20,763,487.80/31,145,231.70 = 5,617,419.30/x
  3. Step 3: Cross multiply
    20,763,487.80x = 31,145,231.70 × 5,617,419.30
  4. Step 4: Simplify right side
    20,763,487.80x = 174,955,825,654,551.81
  5. Step 5: Solve for x
    x = 174,955,825,654,551.81/20,763,487.80
  6. Step 6: Final answer
    x = 8,426,128.95

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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.