Finding the Fourth Proportional to 166,087,416.78, 229,202,558.73 and 91,746,437.31
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Solution
The fourth proportional to 166,087,416.78, 229,202,558.73 and 91,746,437.31 is: 126,611,146.07
Step by Step Solution
- Step 1: Write the proportion equation
166,087,416.78 : 229,202,558.73 = 91,746,437.31 : x - Step 2: Convert to fraction form
166,087,416.78/229,202,558.73 = 91,746,437.31/x - Step 3: Cross multiply
166,087,416.78x = 229,202,558.73 × 91,746,437.31 - Step 4: Simplify right side
166,087,416.78x = 21,028,518,185,813,536 - Step 5: Solve for x
x = 21,028,518,185,813,536/166,087,416.78 - Step 6: Final answer
x = 126,611,146.07
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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.