Finding the Fourth Proportional to 910,701,091.10, 1,256,767,928.70 and 493,013,375.84
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Solution
The fourth proportional to 910,701,091.10, 1,256,767,928.70 and 493,013,375.84 is: 680,358,687.64
Step by Step Solution
- Step 1: Write the proportion equation
910,701,091.10 : 1,256,767,928.70 = 493,013,375.84 : x - Step 2: Convert to fraction form
910,701,091.10/1,256,767,928.70 = 493,013,375.84/x - Step 3: Cross multiply
910,701,091.10x = 1,256,767,928.70 × 493,013,375.84 - Step 4: Simplify right side
910,701,091.10x = 619,603,399,175,831,424 - Step 5: Solve for x
x = 619,603,399,175,831,424/910,701,091.10 - Step 6: Final answer
x = 680,358,687.64
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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.