Finding the Fourth Proportional to 744,331,427.70, 1,116,497,141.55 and 732,852,302.10
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Solution
The fourth proportional to 744,331,427.70, 1,116,497,141.55 and 732,852,302.10 is: 1,099,278,453.15
Step by Step Solution
- Step 1: Write the proportion equation
744,331,427.70 : 1,116,497,141.55 = 732,852,302.10 : x - Step 2: Convert to fraction form
744,331,427.70/1,116,497,141.55 = 732,852,302.10/x - Step 3: Cross multiply
744,331,427.70x = 1,116,497,141.55 × 732,852,302.10 - Step 4: Simplify right side
744,331,427.70x = 818,227,500,472,987,008 - Step 5: Solve for x
x = 818,227,500,472,987,008/744,331,427.70 - Step 6: Final answer
x = 1,099,278,453.15
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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.