Finding the Fourth Proportional to 1,211,114,233.28, 1,671,338,313.62 and 654,197,283.20
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Solution
The fourth proportional to 1,211,114,233.28, 1,671,338,313.62 and 654,197,283.20 is: 902,792,613.64
Step by Step Solution
- Step 1: Write the proportion equation
1,211,114,233.28 : 1,671,338,313.62 = 654,197,283.20 : x - Step 2: Convert to fraction form
1,211,114,233.28/1,671,338,313.62 = 654,197,283.20/x - Step 3: Cross multiply
1,211,114,233.28x = 1,671,338,313.62 × 654,197,283.20 - Step 4: Simplify right side
1,211,114,233.28x = 1,093,384,984,078,273,536 - Step 5: Solve for x
x = 1,093,384,984,078,273,536/1,211,114,233.28 - Step 6: Final answer
x = 902,792,613.64
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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.