Finding the Fourth Proportional to 163,119,696.72, 225,107,021.58 and 88,780,733.19
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Solution
The fourth proportional to 163,119,696.72, 225,107,021.58 and 88,780,733.19 is: 122,518,413.31
Step by Step Solution
- Step 1: Write the proportion equation
163,119,696.72 : 225,107,021.58 = 88,780,733.19 : x - Step 2: Convert to fraction form
163,119,696.72/225,107,021.58 = 88,780,733.19/x - Step 3: Cross multiply
163,119,696.72x = 225,107,021.58 × 88,780,733.19 - Step 4: Simplify right side
163,119,696.72x = 19,985,166,422,089,552 - Step 5: Solve for x
x = 19,985,166,422,089,552/163,119,696.72 - Step 6: Final answer
x = 122,518,413.31
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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.