Finding the Fourth Proportional to 136,725,216.18, 188,668,825.41 and 77,183,230.84
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Solution
The fourth proportional to 136,725,216.18, 188,668,825.41 and 77,183,230.84 is: 106,506,099.69
Step by Step Solution
- Step 1: Write the proportion equation
136,725,216.18 : 188,668,825.41 = 77,183,230.84 : x - Step 2: Convert to fraction form
136,725,216.18/188,668,825.41 = 77,183,230.84/x - Step 3: Cross multiply
136,725,216.18x = 188,668,825.41 × 77,183,230.84 - Step 4: Simplify right side
136,725,216.18x = 14,562,069,504,376,174 - Step 5: Solve for x
x = 14,562,069,504,376,174/136,725,216.18 - Step 6: Final answer
x = 106,506,099.69
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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.