Finding the Fourth Proportional to 1,104,778,694.16, 1,524,587,087.88 and 609,741,388.08
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Solution
The fourth proportional to 1,104,778,694.16, 1,524,587,087.88 and 609,741,388.08 is: 841,438,970.65
Step by Step Solution
- Step 1: Write the proportion equation
1,104,778,694.16 : 1,524,587,087.88 = 609,741,388.08 : x - Step 2: Convert to fraction form
1,104,778,694.16/1,524,587,087.88 = 609,741,388.08/x - Step 3: Cross multiply
1,104,778,694.16x = 1,524,587,087.88 × 609,741,388.08 - Step 4: Simplify right side
1,104,778,694.16x = 929,603,847,212,796,288 - Step 5: Solve for x
x = 929,603,847,212,796,288/1,104,778,694.16 - Step 6: Final answer
x = 841,438,970.65
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Double scale
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Similar ratio
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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.