Finding the Fourth Proportional to 199,530,203.60, 299,295,305.40 and 131,449,768.40
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Solution
The fourth proportional to 199,530,203.60, 299,295,305.40 and 131,449,768.40 is: 197,174,652.60
Step by Step Solution
- Step 1: Write the proportion equation
199,530,203.60 : 299,295,305.40 = 131,449,768.40 : x - Step 2: Convert to fraction form
199,530,203.60/299,295,305.40 = 131,449,768.40/x - Step 3: Cross multiply
199,530,203.60x = 299,295,305.40 × 131,449,768.40 - Step 4: Simplify right side
199,530,203.60x = 39,342,298,578,037,272 - Step 5: Solve for x
x = 39,342,298,578,037,272/199,530,203.60 - Step 6: Final answer
x = 197,174,652.60
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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.