Finding the Fourth Proportional to 900,382,471.80, 1,350,573,707.70 and 747,327,463.80
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Solution
The fourth proportional to 900,382,471.80, 1,350,573,707.70 and 747,327,463.80 is: 1,120,991,195.70
Step by Step Solution
- Step 1: Write the proportion equation
900,382,471.80 : 1,350,573,707.70 = 747,327,463.80 : x - Step 2: Convert to fraction form
900,382,471.80/1,350,573,707.70 = 747,327,463.80/x - Step 3: Cross multiply
900,382,471.80x = 1,350,573,707.70 × 747,327,463.80 - Step 4: Simplify right side
900,382,471.80x = 1,009,320,823,650,403,456 - Step 5: Solve for x
x = 1,009,320,823,650,403,456/900,382,471.80 - Step 6: Final answer
x = 1,120,991,195.70
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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.