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Finding the Fourth Proportional to 69,412,858.40, 104,119,287.60 and 51,496,954.40

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Solution

The fourth proportional to 69,412,858.40, 104,119,287.60 and 51,496,954.40 is: 77,245,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,412,858.40 : 104,119,287.60 = 51,496,954.40 : x
  2. Step 2: Convert to fraction form
    69,412,858.40/104,119,287.60 = 51,496,954.40/x
  3. Step 3: Cross multiply
    69,412,858.40x = 104,119,287.60 × 51,496,954.40
  4. Step 4: Simplify right side
    69,412,858.40x = 5,361,826,205,697,685
  5. Step 5: Solve for x
    x = 5,361,826,205,697,685/69,412,858.40
  6. Step 6: Final answer
    x = 77,245,431.60

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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.