Home / 21,068,111.80-31,583,246.10-8,297,327.80

Finding the Fourth Proportional to 21,068,111.80, 31,583,246.10 and 8,297,327.80

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Solution

The fourth proportional to 21,068,111.80, 31,583,246.10 and 8,297,327.80 is: 12,438,539.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068,111.80 : 31,583,246.10 = 8,297,327.80 : x
  2. Step 2: Convert to fraction form
    21,068,111.80/31,583,246.10 = 8,297,327.80/x
  3. Step 3: Cross multiply
    21,068,111.80x = 31,583,246.10 × 8,297,327.80
  4. Step 4: Simplify right side
    21,068,111.80x = 262,056,545,879,771.59
  5. Step 5: Solve for x
    x = 262,056,545,879,771.59/21,068,111.80
  6. Step 6: Final answer
    x = 12,438,539.74

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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.