Home / 21,455,998.40-32,183,997.60-21,256,932.80

Finding the Fourth Proportional to 21,455,998.40, 32,183,997.60 and 21,256,932.80

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Solution

The fourth proportional to 21,455,998.40, 32,183,997.60 and 21,256,932.80 is: 31,885,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455,998.40 : 32,183,997.60 = 21,256,932.80 : x
  2. Step 2: Convert to fraction form
    21,455,998.40/32,183,997.60 = 21,256,932.80/x
  3. Step 3: Cross multiply
    21,455,998.40x = 32,183,997.60 × 21,256,932.80
  4. Step 4: Simplify right side
    21,455,998.40x = 684,133,074,218,561.38
  5. Step 5: Solve for x
    x = 684,133,074,218,561.38/21,455,998.40
  6. Step 6: Final answer
    x = 31,885,399.20

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1.5x scale

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.