Finding the Fourth Proportional to 74,796,438.40, 112,194,657.60 and 66,734,281.60
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Solution
The fourth proportional to 74,796,438.40, 112,194,657.60 and 66,734,281.60 is: 100,101,422.40
Step by Step Solution
- Step 1: Write the proportion equation
74,796,438.40 : 112,194,657.60 = 66,734,281.60 : x - Step 2: Convert to fraction form
74,796,438.40/112,194,657.60 = 66,734,281.60/x - Step 3: Cross multiply
74,796,438.40x = 112,194,657.60 × 66,734,281.60 - Step 4: Simplify right side
74,796,438.40x = 7,487,229,874,293,980 - Step 5: Solve for x
x = 7,487,229,874,293,980/74,796,438.40 - Step 6: Final answer
x = 100,101,422.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.