Home / 82,032,006.40-123,048,009.60-68,694,611.20

Finding the Fourth Proportional to 82,032,006.40, 123,048,009.60 and 68,694,611.20

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Solution

The fourth proportional to 82,032,006.40, 123,048,009.60 and 68,694,611.20 is: 103,041,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,032,006.40 : 123,048,009.60 = 68,694,611.20 : x
  2. Step 2: Convert to fraction form
    82,032,006.40/123,048,009.60 = 68,694,611.20/x
  3. Step 3: Cross multiply
    82,032,006.40x = 123,048,009.60 × 68,694,611.20
  4. Step 4: Simplify right side
    82,032,006.40x = 8,452,735,178,405,867
  5. Step 5: Solve for x
    x = 8,452,735,178,405,867/82,032,006.40
  6. Step 6: Final answer
    x = 103,041,916.80

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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.