Home / 14,339,878.40-21,509,817.60-12,772,236.80

Finding the Fourth Proportional to 14,339,878.40, 21,509,817.60 and 12,772,236.80

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Solution

The fourth proportional to 14,339,878.40, 21,509,817.60 and 12,772,236.80 is: 19,158,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339,878.40 : 21,509,817.60 = 12,772,236.80 : x
  2. Step 2: Convert to fraction form
    14,339,878.40/21,509,817.60 = 12,772,236.80/x
  3. Step 3: Cross multiply
    14,339,878.40x = 21,509,817.60 × 12,772,236.80
  4. Step 4: Simplify right side
    14,339,878.40x = 274,728,483,912,007.72
  5. Step 5: Solve for x
    x = 274,728,483,912,007.72/14,339,878.40
  6. Step 6: Final answer
    x = 19,158,355.20

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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.