Finding the Fourth Proportional to 2,640,258,586.26, 3,639,916,108.71 and 2,106,222,816.06
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Solution
The fourth proportional to 2,640,258,586.26, 3,639,916,108.71 and 2,106,222,816.06 is: 2,903,683,145.51
Step by Step Solution
- Step 1: Write the proportion equation
2,640,258,586.26 : 3,639,916,108.71 = 2,106,222,816.06 : x - Step 2: Convert to fraction form
2,640,258,586.26/3,639,916,108.71 = 2,106,222,816.06/x - Step 3: Cross multiply
2,640,258,586.26x = 3,639,916,108.71 × 2,106,222,816.06 - Step 4: Simplify right side
2,640,258,586.26x = 7,666,474,356,709,332,992 - Step 5: Solve for x
x = 7,666,474,356,709,332,992/2,640,258,586.26 - Step 6: Final answer
x = 2,903,683,145.51
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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.