Home / 12,362,993.18-18,521,739.56-7,751,102.30

Finding the Fourth Proportional to 12,362,993.18, 18,521,739.56 and 7,751,102.30

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Solution

The fourth proportional to 12,362,993.18, 18,521,739.56 and 7,751,102.30 is: 11,612,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362,993.18 : 18,521,739.56 = 7,751,102.30 : x
  2. Step 2: Convert to fraction form
    12,362,993.18/18,521,739.56 = 7,751,102.30/x
  3. Step 3: Cross multiply
    12,362,993.18x = 18,521,739.56 × 7,751,102.30
  4. Step 4: Simplify right side
    12,362,993.18x = 143,563,897,972,152.78
  5. Step 5: Solve for x
    x = 143,563,897,972,152.78/12,362,993.18
  6. Step 6: Final answer
    x = 11,612,389.97

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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.