Home / 20,726,010.40-31,047,025.20-11,740,064.80

Finding the Fourth Proportional to 20,726,010.40, 31,047,025.20 and 11,740,064.80

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Solution

The fourth proportional to 20,726,010.40, 31,047,025.20 and 11,740,064.80 is: 17,586,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726,010.40 : 31,047,025.20 = 11,740,064.80 : x
  2. Step 2: Convert to fraction form
    20,726,010.40/31,047,025.20 = 11,740,064.80/x
  3. Step 3: Cross multiply
    20,726,010.40x = 31,047,025.20 × 11,740,064.80
  4. Step 4: Simplify right side
    20,726,010.40x = 364,494,087,695,233
  5. Step 5: Solve for x
    x = 364,494,087,695,233/20,726,010.40
  6. Step 6: Final answer
    x = 17,586,312.11

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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.