Finding the Fourth Proportional to 201,937,413.40, 278,695,774.26 and 117,183,202.72
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Solution
The fourth proportional to 201,937,413.40, 278,695,774.26 and 117,183,202.72 is: 161,725,669.66
Step by Step Solution
- Step 1: Write the proportion equation
201,937,413.40 : 278,695,774.26 = 117,183,202.72 : x - Step 2: Convert to fraction form
201,937,413.40/278,695,774.26 = 117,183,202.72/x - Step 3: Cross multiply
201,937,413.40x = 278,695,774.26 × 117,183,202.72 - Step 4: Simplify right side
201,937,413.40x = 32,658,463,412,316,936 - Step 5: Solve for x
x = 32,658,463,412,316,936/201,937,413.40 - Step 6: Final answer
x = 161,725,669.66
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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.