Finding the Fourth Proportional to 2,612,821,403.80, 3,919,232,105.70 and 2,354,832,386.20
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Solution
The fourth proportional to 2,612,821,403.80, 3,919,232,105.70 and 2,354,832,386.20 is: 3,532,248,579.30
Step by Step Solution
- Step 1: Write the proportion equation
2,612,821,403.80 : 3,919,232,105.70 = 2,354,832,386.20 : x - Step 2: Convert to fraction form
2,612,821,403.80/3,919,232,105.70 = 2,354,832,386.20/x - Step 3: Cross multiply
2,612,821,403.80x = 3,919,232,105.70 × 2,354,832,386.20 - Step 4: Simplify right side
2,612,821,403.80x = 9,229,134,691,537,180,672 - Step 5: Solve for x
x = 9,229,134,691,537,180,672/2,612,821,403.80 - Step 6: Final answer
x = 3,532,248,579.30
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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.