Home / 19,978,900.70-27,570,882.87-10,811,543.45

Finding the Fourth Proportional to 19,978,900.70, 27,570,882.87 and 10,811,543.45

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Solution

The fourth proportional to 19,978,900.70, 27,570,882.87 and 10,811,543.45 is: 14,919,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978,900.70 : 27,570,882.87 = 10,811,543.45 : x
  2. Step 2: Convert to fraction form
    19,978,900.70/27,570,882.87 = 10,811,543.45/x
  3. Step 3: Cross multiply
    19,978,900.70x = 27,570,882.87 × 10,811,543.45
  4. Step 4: Simplify right side
    19,978,900.70x = 298,083,797,966,011.31
  5. Step 5: Solve for x
    x = 298,083,797,966,011.31/19,978,900.70
  6. Step 6: Final answer
    x = 14,919,929.91

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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.