Home / 19,978,914.11-27,570,901.50-10,811,556.86

Finding the Fourth Proportional to 19,978,914.11, 27,570,901.50 and 10,811,556.86

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Solution

The fourth proportional to 19,978,914.11, 27,570,901.50 and 10,811,556.86 is: 14,919,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978,914.11 : 27,570,901.50 = 10,811,556.86 : x
  2. Step 2: Convert to fraction form
    19,978,914.11/27,570,901.50 = 10,811,556.86/x
  3. Step 3: Cross multiply
    19,978,914.11x = 27,570,901.50 × 10,811,556.86
  4. Step 4: Simplify right side
    19,978,914.11x = 298,084,369,110,854.81
  5. Step 5: Solve for x
    x = 298,084,369,110,854.81/19,978,914.11
  6. Step 6: Final answer
    x = 14,919,948.48

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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.