Finding the Fourth Proportional to 744,459,352.20, 1,116,689,028.30 and 698,542,849.80
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Solution
The fourth proportional to 744,459,352.20, 1,116,689,028.30 and 698,542,849.80 is: 1,047,814,274.70
Step by Step Solution
- Step 1: Write the proportion equation
744,459,352.20 : 1,116,689,028.30 = 698,542,849.80 : x - Step 2: Convert to fraction form
744,459,352.20/1,116,689,028.30 = 698,542,849.80/x - Step 3: Cross multiply
744,459,352.20x = 1,116,689,028.30 × 698,542,849.80 - Step 4: Simplify right side
744,459,352.20x = 780,055,136,169,074,816 - Step 5: Solve for x
x = 780,055,136,169,074,816/744,459,352.20 - Step 6: Final answer
x = 1,047,814,274.70
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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.