Home / 18,821,006.20-28,168,523.70-13,152,302.20

Finding the Fourth Proportional to 18,821,006.20, 28,168,523.70 and 13,152,302.20

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Solution

The fourth proportional to 18,821,006.20, 28,168,523.70 and 13,152,302.20 is: 19,684,438.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,006.20 : 28,168,523.70 = 13,152,302.20 : x
  2. Step 2: Convert to fraction form
    18,821,006.20/28,168,523.70 = 13,152,302.20/x
  3. Step 3: Cross multiply
    18,821,006.20x = 28,168,523.70 × 13,152,302.20
  4. Step 4: Simplify right side
    18,821,006.20x = 370,480,936,230,262.12
  5. Step 5: Solve for x
    x = 370,480,936,230,262.12/18,821,006.20
  6. Step 6: Final answer
    x = 19,684,438.35

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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.