Home / 20,859,998.60-31,289,997.90-5,713,905.80

Finding the Fourth Proportional to 20,859,998.60, 31,289,997.90 and 5,713,905.80

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Solution

The fourth proportional to 20,859,998.60, 31,289,997.90 and 5,713,905.80 is: 8,570,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,998.60 : 31,289,997.90 = 5,713,905.80 : x
  2. Step 2: Convert to fraction form
    20,859,998.60/31,289,997.90 = 5,713,905.80/x
  3. Step 3: Cross multiply
    20,859,998.60x = 31,289,997.90 × 5,713,905.80
  4. Step 4: Simplify right side
    20,859,998.60x = 178,788,100,482,797.81
  5. Step 5: Solve for x
    x = 178,788,100,482,797.81/20,859,998.60
  6. Step 6: Final answer
    x = 8,570,858.70

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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.