Finding the Fourth Proportional to 153,001,413.59, 211,135,804.21 and 83,385,302.63
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Solution
The fourth proportional to 153,001,413.59, 211,135,804.21 and 83,385,302.63 is: 115,068,367.78
Step by Step Solution
- Step 1: Write the proportion equation
153,001,413.59 : 211,135,804.21 = 83,385,302.63 : x - Step 2: Convert to fraction form
153,001,413.59/211,135,804.21 = 83,385,302.63/x - Step 3: Cross multiply
153,001,413.59x = 211,135,804.21 × 83,385,302.63 - Step 4: Simplify right side
153,001,413.59x = 17,605,622,930,079,278 - Step 5: Solve for x
x = 17,605,622,930,079,278/153,001,413.59 - Step 6: Final answer
x = 115,068,367.78
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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.