Finding the Fourth Proportional to 126,403,713.75, 174,437,125.16 and 68,456,961.75
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Solution
The fourth proportional to 126,403,713.75, 174,437,125.16 and 68,456,961.75 is: 94,470,607.31
Step by Step Solution
- Step 1: Write the proportion equation
126,403,713.75 : 174,437,125.16 = 68,456,961.75 : x - Step 2: Convert to fraction form
126,403,713.75/174,437,125.16 = 68,456,961.75/x - Step 3: Cross multiply
126,403,713.75x = 174,437,125.16 × 68,456,961.75 - Step 4: Simplify right side
126,403,713.75x = 11,941,435,604,515,798 - Step 5: Solve for x
x = 11,941,435,604,515,798/126,403,713.75 - Step 6: Final answer
x = 94,470,607.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.