Finding the Fourth Proportional to 873,690,823.62, 1,310,541,134.94 and 291,423,470.67
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Solution
The fourth proportional to 873,690,823.62, 1,310,541,134.94 and 291,423,470.67 is: 437,136,840.26
Step by Step Solution
- Step 1: Write the proportion equation
873,690,823.62 : 1,310,541,134.94 = 291,423,470.67 : x - Step 2: Convert to fraction form
873,690,823.62/1,310,541,134.94 = 291,423,470.67/x - Step 3: Cross multiply
873,690,823.62x = 1,310,541,134.94 × 291,423,470.67 - Step 4: Simplify right side
873,690,823.62x = 381,922,446,000,015,616 - Step 5: Solve for x
x = 381,922,446,000,015,616/873,690,823.62 - Step 6: Final answer
x = 437,136,840.26
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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.