Home / 21,154,468.80-31,731,703.20-5,198,116.80

Finding the Fourth Proportional to 21,154,468.80, 31,731,703.20 and 5,198,116.80

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Solution

The fourth proportional to 21,154,468.80, 31,731,703.20 and 5,198,116.80 is: 7,797,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154,468.80 : 31,731,703.20 = 5,198,116.80 : x
  2. Step 2: Convert to fraction form
    21,154,468.80/31,731,703.20 = 5,198,116.80/x
  3. Step 3: Cross multiply
    21,154,468.80x = 31,731,703.20 × 5,198,116.80
  4. Step 4: Simplify right side
    21,154,468.80x = 164,945,099,496,533.75
  5. Step 5: Solve for x
    x = 164,945,099,496,533.75/21,154,468.80
  6. Step 6: Final answer
    x = 7,797,175.20

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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.