Home / 31,288,135.80-46,932,203.70-19,809,010.20

Finding the Fourth Proportional to 31,288,135.80, 46,932,203.70 and 19,809,010.20

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Solution

The fourth proportional to 31,288,135.80, 46,932,203.70 and 19,809,010.20 is: 29,713,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,288,135.80 : 46,932,203.70 = 19,809,010.20 : x
  2. Step 2: Convert to fraction form
    31,288,135.80/46,932,203.70 = 19,809,010.20/x
  3. Step 3: Cross multiply
    31,288,135.80x = 46,932,203.70 × 19,809,010.20
  4. Step 4: Simplify right side
    31,288,135.80x = 929,680,501,801,777.75
  5. Step 5: Solve for x
    x = 929,680,501,801,777.75/31,288,135.80
  6. Step 6: Final answer
    x = 29,713,515.30

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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.