Home / 97,115,999.40-145,673,999.10-66,504,997.80

Finding the Fourth Proportional to 97,115,999.40, 145,673,999.10 and 66,504,997.80

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Solution

The fourth proportional to 97,115,999.40, 145,673,999.10 and 66,504,997.80 is: 99,757,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,115,999.40 : 145,673,999.10 = 66,504,997.80 : x
  2. Step 2: Convert to fraction form
    97,115,999.40/145,673,999.10 = 66,504,997.80/x
  3. Step 3: Cross multiply
    97,115,999.40x = 145,673,999.10 × 66,504,997.80
  4. Step 4: Simplify right side
    97,115,999.40x = 9,688,048,989,662,702
  5. Step 5: Solve for x
    x = 9,688,048,989,662,702/97,115,999.40
  6. Step 6: Final answer
    x = 99,757,496.70

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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.