Home / 20,672,373.50-28,527,875.43-11,507,181.38

Finding the Fourth Proportional to 20,672,373.50, 28,527,875.43 and 11,507,181.38

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Solution

The fourth proportional to 20,672,373.50, 28,527,875.43 and 11,507,181.38 is: 15,879,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,373.50 : 28,527,875.43 = 11,507,181.38 : x
  2. Step 2: Convert to fraction form
    20,672,373.50/28,527,875.43 = 11,507,181.38/x
  3. Step 3: Cross multiply
    20,672,373.50x = 28,527,875.43 × 11,507,181.38
  4. Step 4: Simplify right side
    20,672,373.50x = 328,275,436,959,055.50
  5. Step 5: Solve for x
    x = 328,275,436,959,055.50/20,672,373.50
  6. Step 6: Final answer
    x = 15,879,910.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.