Home / 20,136,986.40-30,205,479.60-11,610,310.80

Finding the Fourth Proportional to 20,136,986.40, 30,205,479.60 and 11,610,310.80

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Solution

The fourth proportional to 20,136,986.40, 30,205,479.60 and 11,610,310.80 is: 17,415,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136,986.40 : 30,205,479.60 = 11,610,310.80 : x
  2. Step 2: Convert to fraction form
    20,136,986.40/30,205,479.60 = 11,610,310.80/x
  3. Step 3: Cross multiply
    20,136,986.40x = 30,205,479.60 × 11,610,310.80
  4. Step 4: Simplify right side
    20,136,986.40x = 350,695,006,019,059.75
  5. Step 5: Solve for x
    x = 350,695,006,019,059.75/20,136,986.40
  6. Step 6: Final answer
    x = 17,415,466.20

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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.