Finding the Fourth Proportional to 1,008,236,579.80, 1,512,354,869.70 and 242,331,683.80
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Solution
The fourth proportional to 1,008,236,579.80, 1,512,354,869.70 and 242,331,683.80 is: 363,497,525.70
Step by Step Solution
- Step 1: Write the proportion equation
1,008,236,579.80 : 1,512,354,869.70 = 242,331,683.80 : x - Step 2: Convert to fraction form
1,008,236,579.80/1,512,354,869.70 = 242,331,683.80/x - Step 3: Cross multiply
1,008,236,579.80x = 1,512,354,869.70 × 242,331,683.80 - Step 4: Simplify right side
1,008,236,579.80x = 366,491,502,077,530,624 - Step 5: Solve for x
x = 366,491,502,077,530,624/1,008,236,579.80 - Step 6: Final answer
x = 363,497,525.70
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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.