Finding the Fourth Proportional to 268,709,974.62, 370,807,837.43 and 149,638,708.70
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Solution
The fourth proportional to 268,709,974.62, 370,807,837.43 and 149,638,708.70 is: 206,494,775.81
Step by Step Solution
- Step 1: Write the proportion equation
268,709,974.62 : 370,807,837.43 = 149,638,708.70 : x - Step 2: Convert to fraction form
268,709,974.62/370,807,837.43 = 149,638,708.70/x - Step 3: Cross multiply
268,709,974.62x = 370,807,837.43 × 149,638,708.70 - Step 4: Simplify right side
268,709,974.62x = 55,487,205,966,262,496 - Step 5: Solve for x
x = 55,487,205,966,262,496/268,709,974.62 - Step 6: Final answer
x = 206,494,775.81
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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.