Home / 19,152,136.40-28,728,204.60-7,800,731.60

Finding the Fourth Proportional to 19,152,136.40, 28,728,204.60 and 7,800,731.60

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Solution

The fourth proportional to 19,152,136.40, 28,728,204.60 and 7,800,731.60 is: 11,701,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,136.40 : 28,728,204.60 = 7,800,731.60 : x
  2. Step 2: Convert to fraction form
    19,152,136.40/28,728,204.60 = 7,800,731.60/x
  3. Step 3: Cross multiply
    19,152,136.40x = 28,728,204.60 × 7,800,731.60
  4. Step 4: Simplify right side
    19,152,136.40x = 224,101,013,434,485.38
  5. Step 5: Solve for x
    x = 224,101,013,434,485.38/19,152,136.40
  6. Step 6: Final answer
    x = 11,701,097.40

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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.