Home / 10,856,021.80-16,284,032.70-5,187,317.80

Finding the Fourth Proportional to 10,856,021.80, 16,284,032.70 and 5,187,317.80

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Solution

The fourth proportional to 10,856,021.80, 16,284,032.70 and 5,187,317.80 is: 7,780,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,856,021.80 : 16,284,032.70 = 5,187,317.80 : x
  2. Step 2: Convert to fraction form
    10,856,021.80/16,284,032.70 = 5,187,317.80/x
  3. Step 3: Cross multiply
    10,856,021.80x = 16,284,032.70 × 5,187,317.80
  4. Step 4: Simplify right side
    10,856,021.80x = 84,470,452,680,492.05
  5. Step 5: Solve for x
    x = 84,470,452,680,492.05/10,856,021.80
  6. Step 6: Final answer
    x = 7,780,976.70

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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.