Finding the Fourth Proportional to 221,443,366.68, 305,585,925.41 and 122,321,980.73
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Solution
The fourth proportional to 221,443,366.68, 305,585,925.41 and 122,321,980.73 is: 168,801,062.95
Step by Step Solution
- Step 1: Write the proportion equation
221,443,366.68 : 305,585,925.41 = 122,321,980.73 : x - Step 2: Convert to fraction form
221,443,366.68/305,585,925.41 = 122,321,980.73/x - Step 3: Cross multiply
221,443,366.68x = 305,585,925.41 × 122,321,980.73 - Step 4: Simplify right side
221,443,366.68x = 37,379,875,679,361,240 - Step 5: Solve for x
x = 37,379,875,679,361,240/221,443,366.68 - Step 6: Final answer
x = 168,801,062.95
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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.