Finding the Fourth Proportional to 736,128,203.40, 1,104,192,305.10 and 218,638,513.80
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Solution
The fourth proportional to 736,128,203.40, 1,104,192,305.10 and 218,638,513.80 is: 327,957,770.70
Step by Step Solution
- Step 1: Write the proportion equation
736,128,203.40 : 1,104,192,305.10 = 218,638,513.80 : x - Step 2: Convert to fraction form
736,128,203.40/1,104,192,305.10 = 218,638,513.80/x - Step 3: Cross multiply
736,128,203.40x = 1,104,192,305.10 × 218,638,513.80 - Step 4: Simplify right side
736,128,203.40x = 241,418,964,536,460,160 - Step 5: Solve for x
x = 241,418,964,536,460,160/736,128,203.40 - Step 6: Final answer
x = 327,957,770.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.