Home / 18,337,379-27,506,982.16-6,978,707.96

Finding the Fourth Proportional to 18,337,379, 27,506,982.16 and 6,978,707.96

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Solution

The fourth proportional to 18,337,379, 27,506,982.16 and 6,978,707.96 is: 10,468,409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337,379 : 27,506,982.16 = 6,978,707.96 : x
  2. Step 2: Convert to fraction form
    18,337,379/27,506,982.16 = 6,978,707.96/x
  3. Step 3: Cross multiply
    18,337,379x = 27,506,982.16 × 6,978,707.96
  4. Step 4: Simplify right side
    18,337,379x = 191,963,195,355,570
  5. Step 5: Solve for x
    x = 191,963,195,355,570/18,337,379
  6. Step 6: Final answer
    x = 10,468,409.65

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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.