Finding the Fourth Proportional to 88,316,394.30, 121,876,629.75 and 49,157,328.06
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Solution
The fourth proportional to 88,316,394.30, 121,876,629.75 and 49,157,328.06 is: 67,837,115.85
Step by Step Solution
- Step 1: Write the proportion equation
88,316,394.30 : 121,876,629.75 = 49,157,328.06 : x - Step 2: Convert to fraction form
88,316,394.30/121,876,629.75 = 49,157,328.06/x - Step 3: Cross multiply
88,316,394.30x = 121,876,629.75 × 49,157,328.06 - Step 4: Simplify right side
88,316,394.30x = 5,991,129,471,467,906 - Step 5: Solve for x
x = 5,991,129,471,467,906/88,316,394.30 - Step 6: Final answer
x = 67,837,115.85
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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.