Finding the Fourth Proportional to 767,745,974.72, 1,059,486,236.16 and 415,321,088.96
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Solution
The fourth proportional to 767,745,974.72, 1,059,486,236.16 and 415,321,088.96 is: 573,141,366.84
Step by Step Solution
- Step 1: Write the proportion equation
767,745,974.72 : 1,059,486,236.16 = 415,321,088.96 : x - Step 2: Convert to fraction form
767,745,974.72/1,059,486,236.16 = 415,321,088.96/x - Step 3: Cross multiply
767,745,974.72x = 1,059,486,236.16 × 415,321,088.96 - Step 4: Simplify right side
767,745,974.72x = 440,026,977,340,102,912 - Step 5: Solve for x
x = 440,026,977,340,102,912/767,745,974.72 - Step 6: Final answer
x = 573,141,366.84
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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.