Home / 7,490,999.70-11,236,499.55-7,242,993.90

Finding the Fourth Proportional to 7,490,999.70, 11,236,499.55 and 7,242,993.90

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Solution

The fourth proportional to 7,490,999.70, 11,236,499.55 and 7,242,993.90 is: 10,864,490.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490,999.70 : 11,236,499.55 = 7,242,993.90 : x
  2. Step 2: Convert to fraction form
    7,490,999.70/11,236,499.55 = 7,242,993.90/x
  3. Step 3: Cross multiply
    7,490,999.70x = 11,236,499.55 × 7,242,993.90
  4. Step 4: Simplify right side
    7,490,999.70x = 81,385,897,698,002.75
  5. Step 5: Solve for x
    x = 81,385,897,698,002.75/7,490,999.70
  6. Step 6: Final answer
    x = 10,864,490.85

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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.