Finding the Fourth Proportional to 804,818,412.80, 1,207,227,619.20 and 774,207,411.20
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Solution
The fourth proportional to 804,818,412.80, 1,207,227,619.20 and 774,207,411.20 is: 1,161,311,116.80
Step by Step Solution
- Step 1: Write the proportion equation
804,818,412.80 : 1,207,227,619.20 = 774,207,411.20 : x - Step 2: Convert to fraction form
804,818,412.80/1,207,227,619.20 = 774,207,411.20/x - Step 3: Cross multiply
804,818,412.80x = 1,207,227,619.20 × 774,207,411.20 - Step 4: Simplify right side
804,818,412.80x = 934,644,569,789,971,456 - Step 5: Solve for x
x = 934,644,569,789,971,456/804,818,412.80 - Step 6: Final answer
x = 1,161,311,116.80
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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.