Home / 19,978,900.56-27,570,882.87-10,811,543.40

Finding the Fourth Proportional to 19,978,900.56, 27,570,882.87 and 10,811,543.40

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Solution

The fourth proportional to 19,978,900.56, 27,570,882.87 and 10,811,543.40 is: 14,919,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978,900.56 : 27,570,882.87 = 10,811,543.40 : x
  2. Step 2: Convert to fraction form
    19,978,900.56/27,570,882.87 = 10,811,543.40/x
  3. Step 3: Cross multiply
    19,978,900.56x = 27,570,882.87 × 10,811,543.40
  4. Step 4: Simplify right side
    19,978,900.56x = 298,083,796,725,321.56
  5. Step 5: Solve for x
    x = 298,083,796,725,321.56/19,978,900.56
  6. Step 6: Final answer
    x = 14,919,929.94

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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.