Home / 38,811,119.72-53,558,406.82-21,407,091.28

Finding the Fourth Proportional to 38,811,119.72, 53,558,406.82 and 21,407,091.28

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Solution

The fourth proportional to 38,811,119.72, 53,558,406.82 and 21,407,091.28 is: 29,541,268.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,811,119.72 : 53,558,406.82 = 21,407,091.28 : x
  2. Step 2: Convert to fraction form
    38,811,119.72/53,558,406.82 = 21,407,091.28/x
  3. Step 3: Cross multiply
    38,811,119.72x = 53,558,406.82 × 21,407,091.28
  4. Step 4: Simplify right side
    38,811,119.72x = 1,146,529,703,607,114.50
  5. Step 5: Solve for x
    x = 1,146,529,703,607,114.50/38,811,119.72
  6. Step 6: Final answer
    x = 29,541,268.38

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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.