Finding the Fourth Proportional to 210,325,827.80, 315,488,741.70 and 97,079,619.80
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Solution
The fourth proportional to 210,325,827.80, 315,488,741.70 and 97,079,619.80 is: 145,619,429.70
Step by Step Solution
- Step 1: Write the proportion equation
210,325,827.80 : 315,488,741.70 = 97,079,619.80 : x - Step 2: Convert to fraction form
210,325,827.80/315,488,741.70 = 97,079,619.80/x - Step 3: Cross multiply
210,325,827.80x = 315,488,741.70 × 97,079,619.80 - Step 4: Simplify right side
210,325,827.80x = 30,627,527,095,416,404 - Step 5: Solve for x
x = 30,627,527,095,416,404/210,325,827.80 - Step 6: Final answer
x = 145,619,429.70
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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.