Finding the Fourth Proportional to 132,128,121.60, 197,814,268.80 and 132,128,121.60
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Solution
The fourth proportional to 132,128,121.60, 197,814,268.80 and 132,128,121.60 is: 197,814,268.80
Step by Step Solution
- Step 1: Write the proportion equation
132,128,121.60 : 197,814,268.80 = 132,128,121.60 : x - Step 2: Convert to fraction form
132,128,121.60/197,814,268.80 = 132,128,121.60/x - Step 3: Cross multiply
132,128,121.60x = 197,814,268.80 × 132,128,121.60 - Step 4: Simplify right side
132,128,121.60x = 26,136,827,762,221,488 - Step 5: Solve for x
x = 26,136,827,762,221,488/132,128,121.60 - Step 6: Final answer
x = 197,814,268.80
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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.