Home / 8,481,029,176.40-12,721,543,764.60-3,311,171,128.40

Finding the Fourth Proportional to 8,481,029,176.40, 12,721,543,764.60 and 3,311,171,128.40

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Solution

The fourth proportional to 8,481,029,176.40, 12,721,543,764.60 and 3,311,171,128.40 is: 4,966,756,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481,029,176.40 : 12,721,543,764.60 = 3,311,171,128.40 : x
  2. Step 2: Convert to fraction form
    8,481,029,176.40/12,721,543,764.60 = 3,311,171,128.40/x
  3. Step 3: Cross multiply
    8,481,029,176.40x = 12,721,543,764.60 × 3,311,171,128.40
  4. Step 4: Simplify right side
    8,481,029,176.40x = 42,123,208,422,020,571,136
  5. Step 5: Solve for x
    x = 42,123,208,422,020,571,136/8,481,029,176.40
  6. Step 6: Final answer
    x = 4,966,756,692.60

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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.