Home / 18,801,136.40-28,201,704.60-12,409,893.80

Finding the Fourth Proportional to 18,801,136.40, 28,201,704.60 and 12,409,893.80

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Solution

The fourth proportional to 18,801,136.40, 28,201,704.60 and 12,409,893.80 is: 18,614,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801,136.40 : 28,201,704.60 = 12,409,893.80 : x
  2. Step 2: Convert to fraction form
    18,801,136.40/28,201,704.60 = 12,409,893.80/x
  3. Step 3: Cross multiply
    18,801,136.40x = 28,201,704.60 × 12,409,893.80
  4. Step 4: Simplify right side
    18,801,136.40x = 349,980,159,064,971.50
  5. Step 5: Solve for x
    x = 349,980,159,064,971.50/18,801,136.40
  6. Step 6: Final answer
    x = 18,614,840.70

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1.5x scale

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.