Home / 266,120,735.40-399,181,103.10-120,623,999.40

Finding the Fourth Proportional to 266,120,735.40, 399,181,103.10 and 120,623,999.40

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Solution

The fourth proportional to 266,120,735.40, 399,181,103.10 and 120,623,999.40 is: 180,935,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,120,735.40 : 399,181,103.10 = 120,623,999.40 : x
  2. Step 2: Convert to fraction form
    266,120,735.40/399,181,103.10 = 120,623,999.40/x
  3. Step 3: Cross multiply
    266,120,735.40x = 399,181,103.10 × 120,623,999.40
  4. Step 4: Simplify right side
    266,120,735.40x = 48,150,821,140,825,744
  5. Step 5: Solve for x
    x = 48,150,821,140,825,744/266,120,735.40
  6. Step 6: Final answer
    x = 180,935,999.10

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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.