Finding the Fourth Proportional to 873,470,244.40, 1,310,205,366.60 and 414,305,220.40
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Solution
The fourth proportional to 873,470,244.40, 1,310,205,366.60 and 414,305,220.40 is: 621,457,830.60
Step by Step Solution
- Step 1: Write the proportion equation
873,470,244.40 : 1,310,205,366.60 = 414,305,220.40 : x - Step 2: Convert to fraction form
873,470,244.40/1,310,205,366.60 = 414,305,220.40/x - Step 3: Cross multiply
873,470,244.40x = 1,310,205,366.60 × 414,305,220.40 - Step 4: Simplify right side
873,470,244.40x = 542,824,923,178,475,712 - Step 5: Solve for x
x = 542,824,923,178,475,712/873,470,244.40 - Step 6: Final answer
x = 621,457,830.60
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.