Home / 20,030,997.01-30,046,448.79-13,157,861.21

Finding the Fourth Proportional to 20,030,997.01, 30,046,448.79 and 13,157,861.21

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Solution

The fourth proportional to 20,030,997.01, 30,046,448.79 and 13,157,861.21 is: 19,736,761.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030,997.01 : 30,046,448.79 = 13,157,861.21 : x
  2. Step 2: Convert to fraction form
    20,030,997.01/30,046,448.79 = 13,157,861.21/x
  3. Step 3: Cross multiply
    20,030,997.01x = 30,046,448.79 × 13,157,861.21
  4. Step 4: Simplify right side
    20,030,997.01x = 395,347,003,032,192.44
  5. Step 5: Solve for x
    x = 395,347,003,032,192.44/20,030,997.01
  6. Step 6: Final answer
    x = 19,736,761.12

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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.