Finding the Fourth Proportional to 1,008,889,230.10, 1,513,333,845.15 and 848,181,471.70
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Solution
The fourth proportional to 1,008,889,230.10, 1,513,333,845.15 and 848,181,471.70 is: 1,272,272,207.55
Step by Step Solution
- Step 1: Write the proportion equation
1,008,889,230.10 : 1,513,333,845.15 = 848,181,471.70 : x - Step 2: Convert to fraction form
1,008,889,230.10/1,513,333,845.15 = 848,181,471.70/x - Step 3: Cross multiply
1,008,889,230.10x = 1,513,333,845.15 × 848,181,471.70 - Step 4: Simplify right side
1,008,889,230.10x = 1,283,581,727,952,747,008 - Step 5: Solve for x
x = 1,283,581,727,952,747,008/1,008,889,230.10 - Step 6: Final answer
x = 1,272,272,207.55
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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.