Home / 20,687,058.18-31,009,295.82-9,177,945.60

Finding the Fourth Proportional to 20,687,058.18, 31,009,295.82 and 9,177,945.60

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Solution

The fourth proportional to 20,687,058.18, 31,009,295.82 and 9,177,945.60 is: 13,757,472.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,058.18 : 31,009,295.82 = 9,177,945.60 : x
  2. Step 2: Convert to fraction form
    20,687,058.18/31,009,295.82 = 9,177,945.60/x
  3. Step 3: Cross multiply
    20,687,058.18x = 31,009,295.82 × 9,177,945.60
  4. Step 4: Simplify right side
    20,687,058.18x = 284,601,630,130,267.38
  5. Step 5: Solve for x
    x = 284,601,630,130,267.38/20,687,058.18
  6. Step 6: Final answer
    x = 13,757,472.31

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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.