Home / 13,180,992.98-18,189,567.16-7,379,982.32

Finding the Fourth Proportional to 13,180,992.98, 18,189,567.16 and 7,379,982.32

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Solution

The fourth proportional to 13,180,992.98, 18,189,567.16 and 7,379,982.32 is: 10,184,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180,992.98 : 18,189,567.16 = 7,379,982.32 : x
  2. Step 2: Convert to fraction form
    13,180,992.98/18,189,567.16 = 7,379,982.32/x
  3. Step 3: Cross multiply
    13,180,992.98x = 18,189,567.16 × 7,379,982.32
  4. Step 4: Simplify right side
    13,180,992.98x = 134,238,683,991,012.97
  5. Step 5: Solve for x
    x = 134,238,683,991,012.97/13,180,992.98
  6. Step 6: Final answer
    x = 10,184,261.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.