Home / 19,978,901.70-27,570,884.25-10,811,544.45

Finding the Fourth Proportional to 19,978,901.70, 27,570,884.25 and 10,811,544.45

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Solution

The fourth proportional to 19,978,901.70, 27,570,884.25 and 10,811,544.45 is: 14,919,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978,901.70 : 27,570,884.25 = 10,811,544.45 : x
  2. Step 2: Convert to fraction form
    19,978,901.70/27,570,884.25 = 10,811,544.45/x
  3. Step 3: Cross multiply
    19,978,901.70x = 27,570,884.25 × 10,811,544.45
  4. Step 4: Simplify right side
    19,978,901.70x = 298,083,840,594,679.88
  5. Step 5: Solve for x
    x = 298,083,840,594,679.88/19,978,901.70
  6. Step 6: Final answer
    x = 14,919,931.29

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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.