Home / 28,358,645.40-42,558,963.30-18,770,837.40

Finding the Fourth Proportional to 28,358,645.40, 42,558,963.30 and 18,770,837.40

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Solution

The fourth proportional to 28,358,645.40, 42,558,963.30 and 18,770,837.40 is: 28,170,153.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358,645.40 : 42,558,963.30 = 18,770,837.40 : x
  2. Step 2: Convert to fraction form
    28,358,645.40/42,558,963.30 = 18,770,837.40/x
  3. Step 3: Cross multiply
    28,358,645.40x = 42,558,963.30 × 18,770,837.40
  4. Step 4: Simplify right side
    28,358,645.40x = 798,867,380,016,867.25
  5. Step 5: Solve for x
    x = 798,867,380,016,867.25/28,358,645.40
  6. Step 6: Final answer
    x = 28,170,153.01

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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.