Finding the Fourth Proportional to 122,582,436.84, 169,164,918.72 and 67,580,261.64
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Solution
The fourth proportional to 122,582,436.84, 169,164,918.72 and 67,580,261.64 is: 93,261,398.31
Step by Step Solution
- Step 1: Write the proportion equation
122,582,436.84 : 169,164,918.72 = 67,580,261.64 : x - Step 2: Convert to fraction form
122,582,436.84/169,164,918.72 = 67,580,261.64/x - Step 3: Cross multiply
122,582,436.84x = 169,164,918.72 × 67,580,261.64 - Step 4: Simplify right side
122,582,436.84x = 11,432,209,467,406,934 - Step 5: Solve for x
x = 11,432,209,467,406,934/122,582,436.84 - Step 6: Final answer
x = 93,261,398.31
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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.