Home / 20,796,999.26-28,690,187.73-13,457,201.81

Finding the Fourth Proportional to 20,796,999.26, 28,690,187.73 and 13,457,201.81

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Solution

The fourth proportional to 20,796,999.26, 28,690,187.73 and 13,457,201.81 is: 18,564,680.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,999.26 : 28,690,187.73 = 13,457,201.81 : x
  2. Step 2: Convert to fraction form
    20,796,999.26/28,690,187.73 = 13,457,201.81/x
  3. Step 3: Cross multiply
    20,796,999.26x = 28,690,187.73 × 13,457,201.81
  4. Step 4: Simplify right side
    20,796,999.26x = 386,089,646,249,395.81
  5. Step 5: Solve for x
    x = 386,089,646,249,395.81/20,796,999.26
  6. Step 6: Final answer
    x = 18,564,680.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.