Home / 31,245,431.90-43,119,141.16-18,014,347.08

Finding the Fourth Proportional to 31,245,431.90, 43,119,141.16 and 18,014,347.08

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Solution

The fourth proportional to 31,245,431.90, 43,119,141.16 and 18,014,347.08 is: 24,860,055.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,245,431.90 : 43,119,141.16 = 18,014,347.08 : x
  2. Step 2: Convert to fraction form
    31,245,431.90/43,119,141.16 = 18,014,347.08/x
  3. Step 3: Cross multiply
    31,245,431.90x = 43,119,141.16 × 18,014,347.08
  4. Step 4: Simplify right side
    31,245,431.90x = 776,763,174,647,753.62
  5. Step 5: Solve for x
    x = 776,763,174,647,753.62/31,245,431.90
  6. Step 6: Final answer
    x = 24,860,055.61

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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.