Home / 21,056,147.60-31,592,515.80-8,274,477.20

Finding the Fourth Proportional to 21,056,147.60, 31,592,515.80 and 8,274,477.20

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Solution

The fourth proportional to 21,056,147.60, 31,592,515.80 and 8,274,477.20 is: 12,414,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056,147.60 : 31,592,515.80 = 8,274,477.20 : x
  2. Step 2: Convert to fraction form
    21,056,147.60/31,592,515.80 = 8,274,477.20/x
  3. Step 3: Cross multiply
    21,056,147.60x = 31,592,515.80 × 8,274,477.20
  4. Step 4: Simplify right side
    21,056,147.60x = 261,411,551,677,739.78
  5. Step 5: Solve for x
    x = 261,411,551,677,739.78/21,056,147.60
  6. Step 6: Final answer
    x = 12,414,975.27

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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.