Finding the Fourth Proportional to 68,780,744.64, 94,918,133.28 and 39,411,441.44
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Solution
The fourth proportional to 68,780,744.64, 94,918,133.28 and 39,411,441.44 is: 54,388,193.54
Step by Step Solution
- Step 1: Write the proportion equation
68,780,744.64 : 94,918,133.28 = 39,411,441.44 : x - Step 2: Convert to fraction form
68,780,744.64/94,918,133.28 = 39,411,441.44/x - Step 3: Cross multiply
68,780,744.64x = 94,918,133.28 × 39,411,441.44 - Step 4: Simplify right side
68,780,744.64x = 3,740,860,451,358,835 - Step 5: Solve for x
x = 3,740,860,451,358,835/68,780,744.64 - Step 6: Final answer
x = 54,388,193.54
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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.