Home / 18,679,620.96-28,020,270.78-5,724,822.60

Finding the Fourth Proportional to 18,679,620.96, 28,020,270.78 and 5,724,822.60

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Solution

The fourth proportional to 18,679,620.96, 28,020,270.78 and 5,724,822.60 is: 8,587,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679,620.96 : 28,020,270.78 = 5,724,822.60 : x
  2. Step 2: Convert to fraction form
    18,679,620.96/28,020,270.78 = 5,724,822.60/x
  3. Step 3: Cross multiply
    18,679,620.96x = 28,020,270.78 × 5,724,822.60
  4. Step 4: Simplify right side
    18,679,620.96x = 160,411,079,419,463.62
  5. Step 5: Solve for x
    x = 160,411,079,419,463.62/18,679,620.96
  6. Step 6: Final answer
    x = 8,587,491.14

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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.