Finding the Fourth Proportional to 39,033,695.94, 53,866,821.32 and 21,630,331.79
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Solution
The fourth proportional to 39,033,695.94, 53,866,821.32 and 21,630,331.79 is: 29,850,035.71
Step by Step Solution
- Step 1: Write the proportion equation
39,033,695.94 : 53,866,821.32 = 21,630,331.79 : x - Step 2: Convert to fraction form
39,033,695.94/53,866,821.32 = 21,630,331.79/x - Step 3: Cross multiply
39,033,695.94x = 53,866,821.32 × 21,630,331.79 - Step 4: Simplify right side
39,033,695.94x = 1,165,157,217,624,245.75 - Step 5: Solve for x
x = 1,165,157,217,624,245.75/39,033,695.94 - Step 6: Final answer
x = 29,850,035.71
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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.