Home / 15,065,208.80-20,789,742.80-8,189,864.16

Finding the Fourth Proportional to 15,065,208.80, 20,789,742.80 and 8,189,864.16

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Solution

The fourth proportional to 15,065,208.80, 20,789,742.80 and 8,189,864.16 is: 11,301,879.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065,208.80 : 20,789,742.80 = 8,189,864.16 : x
  2. Step 2: Convert to fraction form
    15,065,208.80/20,789,742.80 = 8,189,864.16/x
  3. Step 3: Cross multiply
    15,065,208.80x = 20,789,742.80 × 8,189,864.16
  4. Step 4: Simplify right side
    15,065,208.80x = 170,265,169,453,338.06
  5. Step 5: Solve for x
    x = 170,265,169,453,338.06/15,065,208.80
  6. Step 6: Final answer
    x = 11,301,879.17

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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.