Finding the Fourth Proportional to 75,082,663.62, 103,614,075.81 and 40,743,847.62
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Solution
The fourth proportional to 75,082,663.62, 103,614,075.81 and 40,743,847.62 is: 56,226,509.72
Step by Step Solution
- Step 1: Write the proportion equation
75,082,663.62 : 103,614,075.81 = 40,743,847.62 : x - Step 2: Convert to fraction form
75,082,663.62/103,614,075.81 = 40,743,847.62/x - Step 3: Cross multiply
75,082,663.62x = 103,614,075.81 × 40,743,847.62 - Step 4: Simplify right side
75,082,663.62x = 4,221,636,116,089,768 - Step 5: Solve for x
x = 4,221,636,116,089,768/75,082,663.62 - Step 6: Final answer
x = 56,226,509.72
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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.