Home / 30,136,137.60-41,587,660.80-16,385,107.20

Finding the Fourth Proportional to 30,136,137.60, 41,587,660.80 and 16,385,107.20

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Solution

The fourth proportional to 30,136,137.60, 41,587,660.80 and 16,385,107.20 is: 22,611,334.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,136,137.60 : 41,587,660.80 = 16,385,107.20 : x
  2. Step 2: Convert to fraction form
    30,136,137.60/41,587,660.80 = 16,385,107.20/x
  3. Step 3: Cross multiply
    30,136,137.60x = 41,587,660.80 × 16,385,107.20
  4. Step 4: Simplify right side
    30,136,137.60x = 681,418,280,405,237.62
  5. Step 5: Solve for x
    x = 681,418,280,405,237.62/30,136,137.60
  6. Step 6: Final answer
    x = 22,611,334.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.