Finding the Fourth Proportional to 268,709,974.95, 370,807,837.81 and 149,638,708.92
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Solution
The fourth proportional to 268,709,974.95, 370,807,837.81 and 149,638,708.92 is: 206,494,776.08
Step by Step Solution
- Step 1: Write the proportion equation
268,709,974.95 : 370,807,837.81 = 149,638,708.92 : x - Step 2: Convert to fraction form
268,709,974.95/370,807,837.81 = 149,638,708.92/x - Step 3: Cross multiply
268,709,974.95x = 370,807,837.81 × 149,638,708.92 - Step 4: Simplify right side
268,709,974.95x = 55,487,206,107,858,088 - Step 5: Solve for x
x = 55,487,206,107,858,088/268,709,974.95 - Step 6: Final answer
x = 206,494,776.08
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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.