Finding the Fourth Proportional to 217,219,639.10, 325,845,205.05 and 130,771,903.10
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Solution
The fourth proportional to 217,219,639.10, 325,845,205.05 and 130,771,903.10 is: 196,167,334.39
Step by Step Solution
- Step 1: Write the proportion equation
217,219,639.10 : 325,845,205.05 = 130,771,903.10 : x - Step 2: Convert to fraction form
217,219,639.10/325,845,205.05 = 130,771,903.10/x - Step 3: Cross multiply
217,219,639.10x = 325,845,205.05 × 130,771,903.10 - Step 4: Simplify right side
217,219,639.10x = 42,611,397,580,398,232 - Step 5: Solve for x
x = 42,611,397,580,398,232/217,219,639.10 - Step 6: Final answer
x = 196,167,334.39
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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.