Finding the Fourth Proportional to 1,214,724,902.92, 1,676,321,982.66 and 657,808,910.44
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Solution
The fourth proportional to 1,214,724,902.92, 1,676,321,982.66 and 657,808,910.44 is: 907,777,171.86
Step by Step Solution
- Step 1: Write the proportion equation
1,214,724,902.92 : 1,676,321,982.66 = 657,808,910.44 : x - Step 2: Convert to fraction form
1,214,724,902.92/1,676,321,982.66 = 657,808,910.44/x - Step 3: Cross multiply
1,214,724,902.92x = 1,676,321,982.66 × 657,808,910.44 - Step 4: Simplify right side
1,214,724,902.92x = 1,102,699,536,960,195,328 - Step 5: Solve for x
x = 1,102,699,536,960,195,328/1,214,724,902.92 - Step 6: Final answer
x = 907,777,171.86
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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.