Home / 20,736,110.40-31,104,165.60-6,361,396.80

Finding the Fourth Proportional to 20,736,110.40, 31,104,165.60 and 6,361,396.80

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Solution

The fourth proportional to 20,736,110.40, 31,104,165.60 and 6,361,396.80 is: 9,542,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,110.40 : 31,104,165.60 = 6,361,396.80 : x
  2. Step 2: Convert to fraction form
    20,736,110.40/31,104,165.60 = 6,361,396.80/x
  3. Step 3: Cross multiply
    20,736,110.40x = 31,104,165.60 × 6,361,396.80
  4. Step 4: Simplify right side
    20,736,110.40x = 197,865,939,514,510.09
  5. Step 5: Solve for x
    x = 197,865,939,514,510.09/20,736,110.40
  6. Step 6: Final answer
    x = 9,542,095.20

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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.