Finding the Fourth Proportional to 136,752,063.36, 188,710,371.84 and 74,860,429.44
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Solution
The fourth proportional to 136,752,063.36, 188,710,371.84 and 74,860,429.44 is: 103,303,300.36
Step by Step Solution
- Step 1: Write the proportion equation
136,752,063.36 : 188,710,371.84 = 74,860,429.44 : x - Step 2: Convert to fraction form
136,752,063.36/188,710,371.84 = 74,860,429.44/x - Step 3: Cross multiply
136,752,063.36x = 188,710,371.84 × 74,860,429.44 - Step 4: Simplify right side
136,752,063.36x = 14,126,939,475,724,482 - Step 5: Solve for x
x = 14,126,939,475,724,482/136,752,063.36 - Step 6: Final answer
x = 103,303,300.36
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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.