Home / 21,879,735.60-32,849,152.20-12,791,146.80

Finding the Fourth Proportional to 21,879,735.60, 32,849,152.20 and 12,791,146.80

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Solution

The fourth proportional to 21,879,735.60, 32,849,152.20 and 12,791,146.80 is: 19,203,994.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879,735.60 : 32,849,152.20 = 12,791,146.80 : x
  2. Step 2: Convert to fraction form
    21,879,735.60/32,849,152.20 = 12,791,146.80/x
  3. Step 3: Cross multiply
    21,879,735.60x = 32,849,152.20 × 12,791,146.80
  4. Step 4: Simplify right side
    21,879,735.60x = 420,178,328,045,743
  5. Step 5: Solve for x
    x = 420,178,328,045,743/21,879,735.60
  6. Step 6: Final answer
    x = 19,203,994.77

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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.