Finding the Fourth Proportional to 834,979,284.77, 1,152,239,843.46 and 463,725,230.99
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Solution
The fourth proportional to 834,979,284.77, 1,152,239,843.46 and 463,725,230.99 is: 639,923,285.89
Step by Step Solution
- Step 1: Write the proportion equation
834,979,284.77 : 1,152,239,843.46 = 463,725,230.99 : x - Step 2: Convert to fraction form
834,979,284.77/1,152,239,843.46 = 463,725,230.99/x - Step 3: Cross multiply
834,979,284.77x = 1,152,239,843.46 × 463,725,230.99 - Step 4: Simplify right side
834,979,284.77x = 534,322,687,562,937,792 - Step 5: Solve for x
x = 534,322,687,562,937,792/834,979,284.77 - Step 6: Final answer
x = 639,923,285.89
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.