Home / 20,684,879.20-30,953,835.60-18,018,488.80

Finding the Fourth Proportional to 20,684,879.20, 30,953,835.60 and 18,018,488.80

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Solution

The fourth proportional to 20,684,879.20, 30,953,835.60 and 18,018,488.80 is: 26,963,722.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,879.20 : 30,953,835.60 = 18,018,488.80 : x
  2. Step 2: Convert to fraction form
    20,684,879.20/30,953,835.60 = 18,018,488.80/x
  3. Step 3: Cross multiply
    20,684,879.20x = 30,953,835.60 × 18,018,488.80
  4. Step 4: Simplify right side
    20,684,879.20x = 557,741,340,075,641.31
  5. Step 5: Solve for x
    x = 557,741,340,075,641.31/20,684,879.20
  6. Step 6: Final answer
    x = 26,963,722.37

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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.