Finding the Fourth Proportional to 74,076,809.48, 102,207,529.41 and 42,724,447.68
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Solution
The fourth proportional to 74,076,809.48, 102,207,529.41 and 42,724,447.68 is: 58,949,086.41
Step by Step Solution
- Step 1: Write the proportion equation
74,076,809.48 : 102,207,529.41 = 42,724,447.68 : x - Step 2: Convert to fraction form
74,076,809.48/102,207,529.41 = 42,724,447.68/x - Step 3: Cross multiply
74,076,809.48x = 102,207,529.41 × 42,724,447.68 - Step 4: Simplify right side
74,076,809.48x = 4,366,760,242,779,606 - Step 5: Solve for x
x = 4,366,760,242,779,606/74,076,809.48 - Step 6: Final answer
x = 58,949,086.41
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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.