Home / 9,721,405.56-13,415,923.41-5,591,430.12

Finding the Fourth Proportional to 9,721,405.56, 13,415,923.41 and 5,591,430.12

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Solution

The fourth proportional to 9,721,405.56, 13,415,923.41 and 5,591,430.12 is: 7,716,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721,405.56 : 13,415,923.41 = 5,591,430.12 : x
  2. Step 2: Convert to fraction form
    9,721,405.56/13,415,923.41 = 5,591,430.12/x
  3. Step 3: Cross multiply
    9,721,405.56x = 13,415,923.41 × 5,591,430.12
  4. Step 4: Simplify right side
    9,721,405.56x = 75,014,198,242,287.11
  5. Step 5: Solve for x
    x = 75,014,198,242,287.11/9,721,405.56
  6. Step 6: Final answer
    x = 7,716,394.28

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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.