Home / 13,670,562.80-20,505,844.20-13,457,986.40

Finding the Fourth Proportional to 13,670,562.80, 20,505,844.20 and 13,457,986.40

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Solution

The fourth proportional to 13,670,562.80, 20,505,844.20 and 13,457,986.40 is: 20,186,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670,562.80 : 20,505,844.20 = 13,457,986.40 : x
  2. Step 2: Convert to fraction form
    13,670,562.80/20,505,844.20 = 13,457,986.40/x
  3. Step 3: Cross multiply
    13,670,562.80x = 20,505,844.20 × 13,457,986.40
  4. Step 4: Simplify right side
    13,670,562.80x = 275,967,372,364,118.88
  5. Step 5: Solve for x
    x = 275,967,372,364,118.88/13,670,562.80
  6. Step 6: Final answer
    x = 20,186,979.60

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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.