Finding the Fourth Proportional to 151,389,369.41, 208,917,413.88 and 81,774,750.88
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Solution
The fourth proportional to 151,389,369.41, 208,917,413.88 and 81,774,750.88 is: 112,849,201.64
Step by Step Solution
- Step 1: Write the proportion equation
151,389,369.41 : 208,917,413.88 = 81,774,750.88 : x - Step 2: Convert to fraction form
151,389,369.41/208,917,413.88 = 81,774,750.88/x - Step 3: Cross multiply
151,389,369.41x = 208,917,413.88 × 81,774,750.88 - Step 4: Simplify right side
151,389,369.41x = 17,084,169,474,530,852 - Step 5: Solve for x
x = 17,084,169,474,530,852/151,389,369.41 - Step 6: Final answer
x = 112,849,201.64
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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.