Home / 18,805,497.35-28,203,511.86-7,287,011.90

Finding the Fourth Proportional to 18,805,497.35, 28,203,511.86 and 7,287,011.90

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Solution

The fourth proportional to 18,805,497.35, 28,203,511.86 and 7,287,011.90 is: 10,928,683.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805,497.35 : 28,203,511.86 = 7,287,011.90 : x
  2. Step 2: Convert to fraction form
    18,805,497.35/28,203,511.86 = 7,287,011.90/x
  3. Step 3: Cross multiply
    18,805,497.35x = 28,203,511.86 × 7,287,011.90
  4. Step 4: Simplify right side
    18,805,497.35x = 205,519,326,404,593.56
  5. Step 5: Solve for x
    x = 205,519,326,404,593.56/18,805,497.35
  6. Step 6: Final answer
    x = 10,928,683.39

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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.