Home / 18,895,087.20-28,345,395.60-6,113,416.80

Finding the Fourth Proportional to 18,895,087.20, 28,345,395.60 and 6,113,416.80

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Solution

The fourth proportional to 18,895,087.20, 28,345,395.60 and 6,113,416.80 is: 9,171,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895,087.20 : 28,345,395.60 = 6,113,416.80 : x
  2. Step 2: Convert to fraction form
    18,895,087.20/28,345,395.60 = 6,113,416.80/x
  3. Step 3: Cross multiply
    18,895,087.20x = 28,345,395.60 × 6,113,416.80
  4. Step 4: Simplify right side
    18,895,087.20x = 173,287,217,663,686.09
  5. Step 5: Solve for x
    x = 173,287,217,663,686.09/18,895,087.20
  6. Step 6: Final answer
    x = 9,171,019.74

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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.