Home / 18,756,668.32-28,131,065.68-5,290,347.04

Finding the Fourth Proportional to 18,756,668.32, 28,131,065.68 and 5,290,347.04

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Solution

The fourth proportional to 18,756,668.32, 28,131,065.68 and 5,290,347.04 is: 7,934,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,668.32 : 28,131,065.68 = 5,290,347.04 : x
  2. Step 2: Convert to fraction form
    18,756,668.32/28,131,065.68 = 5,290,347.04/x
  3. Step 3: Cross multiply
    18,756,668.32x = 28,131,065.68 × 5,290,347.04
  4. Step 4: Simplify right side
    18,756,668.32x = 148,823,100,052,233.59
  5. Step 5: Solve for x
    x = 148,823,100,052,233.59/18,756,668.32
  6. Step 6: Final answer
    x = 7,934,410.18

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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.