Finding the Fourth Proportional to 873,690,687.36, 1,310,540,930.28 and 291,423,334.44
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Solution
The fourth proportional to 873,690,687.36, 1,310,540,930.28 and 291,423,334.44 is: 437,136,635.82
Step by Step Solution
- Step 1: Write the proportion equation
873,690,687.36 : 1,310,540,930.28 = 291,423,334.44 : x - Step 2: Convert to fraction form
873,690,687.36/1,310,540,930.28 = 291,423,334.44/x - Step 3: Cross multiply
873,690,687.36x = 1,310,540,930.28 × 291,423,334.44 - Step 4: Simplify right side
873,690,687.36x = 381,922,207,822,297,152 - Step 5: Solve for x
x = 381,922,207,822,297,152/873,690,687.36 - Step 6: Final answer
x = 437,136,635.82
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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.