Home / 25,905,907.40-38,858,861.10-7,952,678.60

Finding the Fourth Proportional to 25,905,907.40, 38,858,861.10 and 7,952,678.60

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Solution

The fourth proportional to 25,905,907.40, 38,858,861.10 and 7,952,678.60 is: 11,929,017.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905,907.40 : 38,858,861.10 = 7,952,678.60 : x
  2. Step 2: Convert to fraction form
    25,905,907.40/38,858,861.10 = 7,952,678.60/x
  3. Step 3: Cross multiply
    25,905,907.40x = 38,858,861.10 × 7,952,678.60
  4. Step 4: Simplify right side
    25,905,907.40x = 309,032,033,090,342.44
  5. Step 5: Solve for x
    x = 309,032,033,090,342.44/25,905,907.40
  6. Step 6: Final answer
    x = 11,929,017.90

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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.