Home / 20,763,480.80-31,145,221.20-5,617,412.30

Finding the Fourth Proportional to 20,763,480.80, 31,145,221.20 and 5,617,412.30

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Solution

The fourth proportional to 20,763,480.80, 31,145,221.20 and 5,617,412.30 is: 8,426,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,480.80 : 31,145,221.20 = 5,617,412.30 : x
  2. Step 2: Convert to fraction form
    20,763,480.80/31,145,221.20 = 5,617,412.30/x
  3. Step 3: Cross multiply
    20,763,480.80x = 31,145,221.20 × 5,617,412.30
  4. Step 4: Simplify right side
    20,763,480.80x = 174,955,548,655,100.75
  5. Step 5: Solve for x
    x = 174,955,548,655,100.75/20,763,480.80
  6. Step 6: Final answer
    x = 8,426,118.45

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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.