Home / 18,915,211-28,370,156.46-6,135,828.04

Finding the Fourth Proportional to 18,915,211, 28,370,156.46 and 6,135,828.04

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Solution

The fourth proportional to 18,915,211, 28,370,156.46 and 6,135,828.04 is: 9,202,879.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915,211 : 28,370,156.46 = 6,135,828.04 : x
  2. Step 2: Convert to fraction form
    18,915,211/28,370,156.46 = 6,135,828.04/x
  3. Step 3: Cross multiply
    18,915,211x = 28,370,156.46 × 6,135,828.04
  4. Step 4: Simplify right side
    18,915,211x = 174,074,401,506,455.16
  5. Step 5: Solve for x
    x = 174,074,401,506,455.16/18,915,211
  6. Step 6: Final answer
    x = 9,202,879.18

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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.