Home / 13,670,542.80-20,505,814.20-13,457,966.40

Finding the Fourth Proportional to 13,670,542.80, 20,505,814.20 and 13,457,966.40

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Solution

The fourth proportional to 13,670,542.80, 20,505,814.20 and 13,457,966.40 is: 20,186,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670,542.80 : 20,505,814.20 = 13,457,966.40 : x
  2. Step 2: Convert to fraction form
    13,670,542.80/20,505,814.20 = 13,457,966.40/x
  3. Step 3: Cross multiply
    13,670,542.80x = 20,505,814.20 × 13,457,966.40
  4. Step 4: Simplify right side
    13,670,542.80x = 275,966,558,508,242.88
  5. Step 5: Solve for x
    x = 275,966,558,508,242.88/13,670,542.80
  6. Step 6: Final answer
    x = 20,186,949.60

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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.