Home / 20,864,409.43-31,274,525.42-7,018,186.81

Finding the Fourth Proportional to 20,864,409.43, 31,274,525.42 and 7,018,186.81

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Solution

The fourth proportional to 20,864,409.43, 31,274,525.42 and 7,018,186.81 is: 10,519,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,409.43 : 31,274,525.42 = 7,018,186.81 : x
  2. Step 2: Convert to fraction form
    20,864,409.43/31,274,525.42 = 7,018,186.81/x
  3. Step 3: Cross multiply
    20,864,409.43x = 31,274,525.42 × 7,018,186.81
  4. Step 4: Simplify right side
    20,864,409.43x = 219,490,461,600,190.12
  5. Step 5: Solve for x
    x = 219,490,461,600,190.12/20,864,409.43
  6. Step 6: Final answer
    x = 10,519,850.20

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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.