Home / 19,765,610.88-27,276,821.58-11,388,350.78

Finding the Fourth Proportional to 19,765,610.88, 27,276,821.58 and 11,388,350.78

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Solution

The fourth proportional to 19,765,610.88, 27,276,821.58 and 11,388,350.78 is: 15,716,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765,610.88 : 27,276,821.58 = 11,388,350.78 : x
  2. Step 2: Convert to fraction form
    19,765,610.88/27,276,821.58 = 11,388,350.78/x
  3. Step 3: Cross multiply
    19,765,610.88x = 27,276,821.58 × 11,388,350.78
  4. Step 4: Simplify right side
    19,765,610.88x = 310,638,012,316,513.81
  5. Step 5: Solve for x
    x = 310,638,012,316,513.81/19,765,610.88
  6. Step 6: Final answer
    x = 15,716,084.58

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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.