Home / 18,756,912.99-28,134,844.59-5,978,184.51

Finding the Fourth Proportional to 18,756,912.99, 28,134,844.59 and 5,978,184.51

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Solution

The fourth proportional to 18,756,912.99, 28,134,844.59 and 5,978,184.51 is: 8,967,109.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,912.99 : 28,134,844.59 = 5,978,184.51 : x
  2. Step 2: Convert to fraction form
    18,756,912.99/28,134,844.59 = 5,978,184.51/x
  3. Step 3: Cross multiply
    18,756,912.99x = 28,134,844.59 × 5,978,184.51
  4. Step 4: Simplify right side
    18,756,912.99x = 168,195,292,119,195.28
  5. Step 5: Solve for x
    x = 168,195,292,119,195.28/18,756,912.99
  6. Step 6: Final answer
    x = 8,967,109.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.