Home / 15,128,716.07-20,874,772.82-9,017,713.19

Finding the Fourth Proportional to 15,128,716.07, 20,874,772.82 and 9,017,713.19

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Solution

The fourth proportional to 15,128,716.07, 20,874,772.82 and 9,017,713.19 is: 12,442,742.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,716.07 : 20,874,772.82 = 9,017,713.19 : x
  2. Step 2: Convert to fraction form
    15,128,716.07/20,874,772.82 = 9,017,713.19/x
  3. Step 3: Cross multiply
    15,128,716.07x = 20,874,772.82 × 9,017,713.19
  4. Step 4: Simplify right side
    15,128,716.07x = 188,242,714,047,705.09
  5. Step 5: Solve for x
    x = 188,242,714,047,705.09/15,128,716.07
  6. Step 6: Final answer
    x = 12,442,742.22

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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.