Finding the Fourth Proportional to 666,628,765.06, 920,266,696.84 and 443,980,967.62
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Solution
The fourth proportional to 666,628,765.06, 920,266,696.84 and 443,980,967.62 is: 612,906,192.99
Step by Step Solution
- Step 1: Write the proportion equation
666,628,765.06 : 920,266,696.84 = 443,980,967.62 : x - Step 2: Convert to fraction form
666,628,765.06/920,266,696.84 = 443,980,967.62/x - Step 3: Cross multiply
666,628,765.06x = 920,266,696.84 × 443,980,967.62 - Step 4: Simplify right side
666,628,765.06x = 408,580,898,526,883,072 - Step 5: Solve for x
x = 408,580,898,526,883,072/666,628,765.06 - Step 6: Final answer
x = 612,906,192.99
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1.5x scale
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.