Home / 21,056,420.20-31,557,111.90-15,240,189.64

Finding the Fourth Proportional to 21,056,420.20, 31,557,111.90 and 15,240,189.64

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Solution

The fourth proportional to 21,056,420.20, 31,557,111.90 and 15,240,189.64 is: 22,840,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056,420.20 : 31,557,111.90 = 15,240,189.64 : x
  2. Step 2: Convert to fraction form
    21,056,420.20/31,557,111.90 = 15,240,189.64/x
  3. Step 3: Cross multiply
    21,056,420.20x = 31,557,111.90 × 15,240,189.64
  4. Step 4: Simplify right side
    21,056,420.20x = 480,936,369,846,700.69
  5. Step 5: Solve for x
    x = 480,936,369,846,700.69/21,056,420.20
  6. Step 6: Final answer
    x = 22,840,367.23

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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.