Home / 9,917,605.71-13,686,638.32-5,507,405.20

Finding the Fourth Proportional to 9,917,605.71, 13,686,638.32 and 5,507,405.20

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Solution

The fourth proportional to 9,917,605.71, 13,686,638.32 and 5,507,405.20 is: 7,600,409.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917,605.71 : 13,686,638.32 = 5,507,405.20 : x
  2. Step 2: Convert to fraction form
    9,917,605.71/13,686,638.32 = 5,507,405.20/x
  3. Step 3: Cross multiply
    9,917,605.71x = 13,686,638.32 × 5,507,405.20
  4. Step 4: Simplify right side
    9,917,605.71x = 75,377,863,009,661.25
  5. Step 5: Solve for x
    x = 75,377,863,009,661.25/9,917,605.71
  6. Step 6: Final answer
    x = 7,600,409.33

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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.