Home / 100,405,331.40-150,607,997.10-69,794,329.80

Finding the Fourth Proportional to 100,405,331.40, 150,607,997.10 and 69,794,329.80

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Solution

The fourth proportional to 100,405,331.40, 150,607,997.10 and 69,794,329.80 is: 104,691,494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,405,331.40 : 150,607,997.10 = 69,794,329.80 : x
  2. Step 2: Convert to fraction form
    100,405,331.40/150,607,997.10 = 69,794,329.80/x
  3. Step 3: Cross multiply
    100,405,331.40x = 150,607,997.10 × 69,794,329.80
  4. Step 4: Simplify right side
    100,405,331.40x = 10,511,584,220,114,842
  5. Step 5: Solve for x
    x = 10,511,584,220,114,842/100,405,331.40
  6. Step 6: Final answer
    x = 104,691,494.70

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1.5x scale

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.