Finding the Fourth Proportional to 129,025,279.80, 193,537,919.70 and 57,361,663.80
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Solution
The fourth proportional to 129,025,279.80, 193,537,919.70 and 57,361,663.80 is: 86,042,495.70
Step by Step Solution
- Step 1: Write the proportion equation
129,025,279.80 : 193,537,919.70 = 57,361,663.80 : x - Step 2: Convert to fraction form
129,025,279.80/193,537,919.70 = 57,361,663.80/x - Step 3: Cross multiply
129,025,279.80x = 193,537,919.70 × 57,361,663.80 - Step 4: Simplify right side
129,025,279.80x = 11,101,657,082,382,796 - Step 5: Solve for x
x = 11,101,657,082,382,796/129,025,279.80 - Step 6: Final answer
x = 86,042,495.70
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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.