Home / 19,666,619.92-27,130,289.07-13,141,851.22

Finding the Fourth Proportional to 19,666,619.92, 27,130,289.07 and 13,141,851.22

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Solution

The fourth proportional to 19,666,619.92, 27,130,289.07 and 13,141,851.22 is: 18,129,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666,619.92 : 27,130,289.07 = 13,141,851.22 : x
  2. Step 2: Convert to fraction form
    19,666,619.92/27,130,289.07 = 13,141,851.22/x
  3. Step 3: Cross multiply
    19,666,619.92x = 27,130,289.07 × 13,141,851.22
  4. Step 4: Simplify right side
    19,666,619.92x = 356,542,222,513,532.19
  5. Step 5: Solve for x
    x = 356,542,222,513,532.19/19,666,619.92
  6. Step 6: Final answer
    x = 18,129,308.64

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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.