Home / 21,305,443.80-31,958,165.70-9,361,507.80

Finding the Fourth Proportional to 21,305,443.80, 31,958,165.70 and 9,361,507.80

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Solution

The fourth proportional to 21,305,443.80, 31,958,165.70 and 9,361,507.80 is: 14,042,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305,443.80 : 31,958,165.70 = 9,361,507.80 : x
  2. Step 2: Convert to fraction form
    21,305,443.80/31,958,165.70 = 9,361,507.80/x
  3. Step 3: Cross multiply
    21,305,443.80x = 31,958,165.70 × 9,361,507.80
  4. Step 4: Simplify right side
    21,305,443.80x = 299,176,617,474,242.50
  5. Step 5: Solve for x
    x = 299,176,617,474,242.50/21,305,443.80
  6. Step 6: Final answer
    x = 14,042,261.70

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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.