Finding the Fourth Proportional to 991,489,803.66, 1,486,913,626.35 and 327,354,629.18
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Solution
The fourth proportional to 991,489,803.66, 1,486,913,626.35 and 327,354,629.18 is: 490,925,934.86
Step by Step Solution
- Step 1: Write the proportion equation
991,489,803.66 : 1,486,913,626.35 = 327,354,629.18 : x - Step 2: Convert to fraction form
991,489,803.66/1,486,913,626.35 = 327,354,629.18/x - Step 3: Cross multiply
991,489,803.66x = 1,486,913,626.35 × 327,354,629.18 - Step 4: Simplify right side
991,489,803.66x = 486,748,058,769,058,752 - Step 5: Solve for x
x = 486,748,058,769,058,752/991,489,803.66 - Step 6: Final answer
x = 490,925,934.86
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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.