Finding the Fourth Proportional to 1,468,559,872.40, 2,202,202,079.40 and 485,606,598.80
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Solution
The fourth proportional to 1,468,559,872.40, 2,202,202,079.40 and 485,606,598.80 is: 728,199,021.19
Step by Step Solution
- Step 1: Write the proportion equation
1,468,559,872.40 : 2,202,202,079.40 = 485,606,598.80 : x - Step 2: Convert to fraction form
1,468,559,872.40/2,202,202,079.40 = 485,606,598.80/x - Step 3: Cross multiply
1,468,559,872.40x = 2,202,202,079.40 × 485,606,598.80 - Step 4: Simplify right side
1,468,559,872.40x = 1,069,403,861,647,721,600 - Step 5: Solve for x
x = 1,069,403,861,647,721,600/1,468,559,872.40 - Step 6: Final answer
x = 728,199,021.19
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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.