Finding the Fourth Proportional to 1,778,624,514.67, 2,454,528,673.37 and 974,845,581.18
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Solution
The fourth proportional to 1,778,624,514.67, 2,454,528,673.37 and 974,845,581.18 is: 1,345,301,614.47
Step by Step Solution
- Step 1: Write the proportion equation
1,778,624,514.67 : 2,454,528,673.37 = 974,845,581.18 : x - Step 2: Convert to fraction form
1,778,624,514.67/2,454,528,673.37 = 974,845,581.18/x - Step 3: Cross multiply
1,778,624,514.67x = 2,454,528,673.37 × 974,845,581.18 - Step 4: Simplify right side
1,778,624,514.67x = 2,392,786,431,114,408,448 - Step 5: Solve for x
x = 2,392,786,431,114,408,448/1,778,624,514.67 - Step 6: Final answer
x = 1,345,301,614.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.