Finding the Fourth Proportional to 126,128,428,670.70, 189,193,133,845.35 and 30,514,294,068.96
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Solution
The fourth proportional to 126,128,428,670.70, 189,193,133,845.35 and 30,514,294,068.96 is: 45,771,559,852.36
Step by Step Solution
- Step 1: Write the proportion equation
126,128,428,670.70 : 189,193,133,845.35 = 30,514,294,068.96 : x - Step 2: Convert to fraction form
126,128,428,670.70/189,193,133,845.35 = 30,514,294,068.96/x - Step 3: Cross multiply
126,128,428,670.70x = 189,193,133,845.35 × 30,514,294,068.96 - Step 4: Simplify right side
126,128,428,670.70x = 5,773,094,921,985,118,437,376 - Step 5: Solve for x
x = 5,773,094,921,985,118,437,376/126,128,428,670.70 - Step 6: Final answer
x = 45,771,559,852.36
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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.