Finding the Fourth Proportional to 74,724,577.90, 112,082,881.02 and 20,136,286.99
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Solution
The fourth proportional to 74,724,577.90, 112,082,881.02 and 20,136,286.99 is: 30,203,356.41
Step by Step Solution
- Step 1: Write the proportion equation
74,724,577.90 : 112,082,881.02 = 20,136,286.99 : x - Step 2: Convert to fraction form
74,724,577.90/112,082,881.02 = 20,136,286.99/x - Step 3: Cross multiply
74,724,577.90x = 112,082,881.02 × 20,136,286.99 - Step 4: Simplify right side
74,724,577.90x = 2,256,933,058,884,743.50 - Step 5: Solve for x
x = 2,256,933,058,884,743.50/74,724,577.90 - Step 6: Final answer
x = 30,203,356.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.