Home / 28,571,106.78-39,427,456.76-16,811,136.84

Finding the Fourth Proportional to 28,571,106.78, 39,427,456.76 and 16,811,136.84

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Solution

The fourth proportional to 28,571,106.78, 39,427,456.76 and 16,811,136.84 is: 23,198,974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571,106.78 : 39,427,456.76 = 16,811,136.84 : x
  2. Step 2: Convert to fraction form
    28,571,106.78/39,427,456.76 = 16,811,136.84/x
  3. Step 3: Cross multiply
    28,571,106.78x = 39,427,456.76 × 16,811,136.84
  4. Step 4: Simplify right side
    28,571,106.78x = 662,820,370,845,543
  5. Step 5: Solve for x
    x = 662,820,370,845,543/28,571,106.78
  6. Step 6: Final answer
    x = 23,198,974.26

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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.