Finding the Fourth Proportional to 53,831,979.09, 74,278,331.96 and 30,306,857.49
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Solution
The fourth proportional to 53,831,979.09, 74,278,331.96 and 30,306,857.49 is: 41,817,946.50
Step by Step Solution
- Step 1: Write the proportion equation
53,831,979.09 : 74,278,331.96 = 30,306,857.49 : x - Step 2: Convert to fraction form
53,831,979.09/74,278,331.96 = 30,306,857.49/x - Step 3: Cross multiply
53,831,979.09x = 74,278,331.96 × 30,306,857.49 - Step 4: Simplify right side
53,831,979.09x = 2,251,142,821,306,632 - Step 5: Solve for x
x = 2,251,142,821,306,632/53,831,979.09 - Step 6: Final answer
x = 41,817,946.50
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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.