Home / 13,106,039.95-18,086,419.09-7,305,189.51

Finding the Fourth Proportional to 13,106,039.95, 18,086,419.09 and 7,305,189.51

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Solution

The fourth proportional to 13,106,039.95, 18,086,419.09 and 7,305,189.51 is: 10,081,208.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106,039.95 : 18,086,419.09 = 7,305,189.51 : x
  2. Step 2: Convert to fraction form
    13,106,039.95/18,086,419.09 = 7,305,189.51/x
  3. Step 3: Cross multiply
    13,106,039.95x = 18,086,419.09 × 7,305,189.51
  4. Step 4: Simplify right side
    13,106,039.95x = 132,124,719,009,731.73
  5. Step 5: Solve for x
    x = 132,124,719,009,731.73/13,106,039.95
  6. Step 6: Final answer
    x = 10,081,208.32

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1.5x scale

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.