Home / 78,847,896.70-118,271,845.05-33,403,786.30

Finding the Fourth Proportional to 78,847,896.70, 118,271,845.05 and 33,403,786.30

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Solution

The fourth proportional to 78,847,896.70, 118,271,845.05 and 33,403,786.30 is: 50,105,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,847,896.70 : 118,271,845.05 = 33,403,786.30 : x
  2. Step 2: Convert to fraction form
    78,847,896.70/118,271,845.05 = 33,403,786.30/x
  3. Step 3: Cross multiply
    78,847,896.70x = 118,271,845.05 × 33,403,786.30
  4. Step 4: Simplify right side
    78,847,896.70x = 3,950,727,437,356,913
  5. Step 5: Solve for x
    x = 3,950,727,437,356,913/78,847,896.70
  6. Step 6: Final answer
    x = 50,105,679.45

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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.