Home / 18,680,166.66-28,017,538.38-7,168,531.28

Finding the Fourth Proportional to 18,680,166.66, 28,017,538.38 and 7,168,531.28

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Solution

The fourth proportional to 18,680,166.66, 28,017,538.38 and 7,168,531.28 is: 10,751,756.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680,166.66 : 28,017,538.38 = 7,168,531.28 : x
  2. Step 2: Convert to fraction form
    18,680,166.66/28,017,538.38 = 7,168,531.28/x
  3. Step 3: Cross multiply
    18,680,166.66x = 28,017,538.38 × 7,168,531.28
  4. Step 4: Simplify right side
    18,680,166.66x = 200,844,600,265,630.53
  5. Step 5: Solve for x
    x = 200,844,600,265,630.53/18,680,166.66
  6. Step 6: Final answer
    x = 10,751,756.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.