Finding the Fourth Proportional to 873,690,684.63, 1,310,540,926.16 and 291,423,331.68
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Solution
The fourth proportional to 873,690,684.63, 1,310,540,926.16 and 291,423,331.68 is: 437,136,631.67
Step by Step Solution
- Step 1: Write the proportion equation
873,690,684.63 : 1,310,540,926.16 = 291,423,331.68 : x - Step 2: Convert to fraction form
873,690,684.63/1,310,540,926.16 = 291,423,331.68/x - Step 3: Cross multiply
873,690,684.63x = 1,310,540,926.16 × 291,423,331.68 - Step 4: Simplify right side
873,690,684.63x = 381,922,203,004,540,096 - Step 5: Solve for x
x = 381,922,203,004,540,096/873,690,684.63 - Step 6: Final answer
x = 437,136,631.67
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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.