Finding the Fourth Proportional to 818,400,181.97, 1,129,392,704.22 and 442,056,767.99
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Solution
The fourth proportional to 818,400,181.97, 1,129,392,704.22 and 442,056,767.99 is: 610,038,584.56
Step by Step Solution
- Step 1: Write the proportion equation
818,400,181.97 : 1,129,392,704.22 = 442,056,767.99 : x - Step 2: Convert to fraction form
818,400,181.97/1,129,392,704.22 = 442,056,767.99/x - Step 3: Cross multiply
818,400,181.97x = 1,129,392,704.22 × 442,056,767.99 - Step 4: Simplify right side
818,400,181.97x = 499,255,688,613,332,288 - Step 5: Solve for x
x = 499,255,688,613,332,288/818,400,181.97 - Step 6: Final answer
x = 610,038,584.56
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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.