Home / 20,232,288.32-30,369,821.60-19,775,380.80

Finding the Fourth Proportional to 20,232,288.32, 30,369,821.60 and 19,775,380.80

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Solution

The fourth proportional to 20,232,288.32, 30,369,821.60 and 19,775,380.80 is: 29,683,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232,288.32 : 30,369,821.60 = 19,775,380.80 : x
  2. Step 2: Convert to fraction form
    20,232,288.32/30,369,821.60 = 19,775,380.80/x
  3. Step 3: Cross multiply
    20,232,288.32x = 30,369,821.60 × 19,775,380.80
  4. Step 4: Simplify right side
    20,232,288.32x = 600,574,786,968,065.38
  5. Step 5: Solve for x
    x = 600,574,786,968,065.38/20,232,288.32
  6. Step 6: Final answer
    x = 29,683,977.29

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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.