Finding the Fourth Proportional to 869,166,353.80, 1,303,749,530.70 and 665,093,009.80
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Solution
The fourth proportional to 869,166,353.80, 1,303,749,530.70 and 665,093,009.80 is: 997,639,514.70
Step by Step Solution
- Step 1: Write the proportion equation
869,166,353.80 : 1,303,749,530.70 = 665,093,009.80 : x - Step 2: Convert to fraction form
869,166,353.80/1,303,749,530.70 = 665,093,009.80/x - Step 3: Cross multiply
869,166,353.80x = 1,303,749,530.70 × 665,093,009.80 - Step 4: Simplify right side
869,166,353.80x = 867,114,699,398,600,448 - Step 5: Solve for x
x = 867,114,699,398,600,448/869,166,353.80 - Step 6: Final answer
x = 997,639,514.70
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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.