Home / 9,991,249.96-13,788,025.86-5,407,669.48

Finding the Fourth Proportional to 9,991,249.96, 13,788,025.86 and 5,407,669.48

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Solution

The fourth proportional to 9,991,249.96, 13,788,025.86 and 5,407,669.48 is: 7,462,638.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991,249.96 : 13,788,025.86 = 5,407,669.48 : x
  2. Step 2: Convert to fraction form
    9,991,249.96/13,788,025.86 = 5,407,669.48/x
  3. Step 3: Cross multiply
    9,991,249.96x = 13,788,025.86 × 5,407,669.48
  4. Step 4: Simplify right side
    9,991,249.96x = 74,561,086,632,572.75
  5. Step 5: Solve for x
    x = 74,561,086,632,572.75/9,991,249.96
  6. Step 6: Final answer
    x = 7,462,638.50

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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.