Home / 20,760,093.74-31,146,803.67-9,978,176.45

Finding the Fourth Proportional to 20,760,093.74, 31,146,803.67 and 9,978,176.45

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Solution

The fourth proportional to 20,760,093.74, 31,146,803.67 and 9,978,176.45 is: 14,970,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,093.74 : 31,146,803.67 = 9,978,176.45 : x
  2. Step 2: Convert to fraction form
    20,760,093.74/31,146,803.67 = 9,978,176.45/x
  3. Step 3: Cross multiply
    20,760,093.74x = 31,146,803.67 × 9,978,176.45
  4. Step 4: Simplify right side
    20,760,093.74x = 310,788,302,872,767.56
  5. Step 5: Solve for x
    x = 310,788,302,872,767.56/20,760,093.74
  6. Step 6: Final answer
    x = 14,970,467.22

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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.