Finding the Fourth Proportional to 1,621,718,696.64, 2,237,989,440 and 952,691,939.76
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Solution
The fourth proportional to 1,621,718,696.64, 2,237,989,440 and 952,691,939.76 is: 1,314,725,238.83
Step by Step Solution
- Step 1: Write the proportion equation
1,621,718,696.64 : 2,237,989,440 = 952,691,939.76 : x - Step 2: Convert to fraction form
1,621,718,696.64/2,237,989,440 = 952,691,939.76/x - Step 3: Cross multiply
1,621,718,696.64x = 2,237,989,440 × 952,691,939.76 - Step 4: Simplify right side
1,621,718,696.64x = 2,132,114,500,755,996,160 - Step 5: Solve for x
x = 2,132,114,500,755,996,160/1,621,718,696.64 - Step 6: Final answer
x = 1,314,725,238.83
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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.