Home / 13,442,796.45-18,547,870.46-7,641,121.48

Finding the Fourth Proportional to 13,442,796.45, 18,547,870.46 and 7,641,121.48

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Solution

The fourth proportional to 13,442,796.45, 18,547,870.46 and 7,641,121.48 is: 10,542,935.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442,796.45 : 18,547,870.46 = 7,641,121.48 : x
  2. Step 2: Convert to fraction form
    13,442,796.45/18,547,870.46 = 7,641,121.48/x
  3. Step 3: Cross multiply
    13,442,796.45x = 18,547,870.46 × 7,641,121.48
  4. Step 4: Simplify right side
    13,442,796.45x = 141,726,531,399,919.97
  5. Step 5: Solve for x
    x = 141,726,531,399,919.97/13,442,796.45
  6. Step 6: Final answer
    x = 10,542,935.16

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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.