Finding the Fourth Proportional to 848,428,315.56, 1,272,643,949.58 and 266,207,242.28
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Solution
The fourth proportional to 848,428,315.56, 1,272,643,949.58 and 266,207,242.28 is: 399,311,326.61
Step by Step Solution
- Step 1: Write the proportion equation
848,428,315.56 : 1,272,643,949.58 = 266,207,242.28 : x - Step 2: Convert to fraction form
848,428,315.56/1,272,643,949.58 = 266,207,242.28/x - Step 3: Cross multiply
848,428,315.56x = 1,272,643,949.58 × 266,207,242.28 - Step 4: Simplify right side
848,428,315.56x = 338,787,036,222,019,136 - Step 5: Solve for x
x = 338,787,036,222,019,136/848,428,315.56 - Step 6: Final answer
x = 399,311,326.61
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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.