Home / 12,689,948.63-19,035,661.31-3,591,285.05

Finding the Fourth Proportional to 12,689,948.63, 19,035,661.31 and 3,591,285.05

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Solution

The fourth proportional to 12,689,948.63, 19,035,661.31 and 3,591,285.05 is: 5,387,136.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689,948.63 : 19,035,661.31 = 3,591,285.05 : x
  2. Step 2: Convert to fraction form
    12,689,948.63/19,035,661.31 = 3,591,285.05/x
  3. Step 3: Cross multiply
    12,689,948.63x = 19,035,661.31 × 3,591,285.05
  4. Step 4: Simplify right side
    12,689,948.63x = 68,362,485,879,466.41
  5. Step 5: Solve for x
    x = 68,362,485,879,466.41/12,689,948.63
  6. Step 6: Final answer
    x = 5,387,136.53

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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.