Home / 21,305,932.60-31,958,898.90-7,848,009.40

Finding the Fourth Proportional to 21,305,932.60, 31,958,898.90 and 7,848,009.40

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Solution

The fourth proportional to 21,305,932.60, 31,958,898.90 and 7,848,009.40 is: 11,772,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305,932.60 : 31,958,898.90 = 7,848,009.40 : x
  2. Step 2: Convert to fraction form
    21,305,932.60/31,958,898.90 = 7,848,009.40/x
  3. Step 3: Cross multiply
    21,305,932.60x = 31,958,898.90 × 7,848,009.40
  4. Step 4: Simplify right side
    21,305,932.60x = 250,813,738,980,849.66
  5. Step 5: Solve for x
    x = 250,813,738,980,849.66/21,305,932.60
  6. Step 6: Final answer
    x = 11,772,014.10

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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.