Finding the Fourth Proportional to 7,274,236,431.20, 10,911,354,646.80 and 3,141,751,215.20
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Solution
The fourth proportional to 7,274,236,431.20, 10,911,354,646.80 and 3,141,751,215.20 is: 4,712,626,822.80
Step by Step Solution
- Step 1: Write the proportion equation
7,274,236,431.20 : 10,911,354,646.80 = 3,141,751,215.20 : x - Step 2: Convert to fraction form
7,274,236,431.20/10,911,354,646.80 = 3,141,751,215.20/x - Step 3: Cross multiply
7,274,236,431.20x = 10,911,354,646.80 × 3,141,751,215.20 - Step 4: Simplify right side
7,274,236,431.20x = 34,280,761,721,062,064,128 - Step 5: Solve for x
x = 34,280,761,721,062,064,128/7,274,236,431.20 - Step 6: Final answer
x = 4,712,626,822.80
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.