Finding the Fourth Proportional to 572,058,738.20, 858,088,107.30 and 189,106,290.20
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Solution
The fourth proportional to 572,058,738.20, 858,088,107.30 and 189,106,290.20 is: 283,659,435.30
Step by Step Solution
- Step 1: Write the proportion equation
572,058,738.20 : 858,088,107.30 = 189,106,290.20 : x - Step 2: Convert to fraction form
572,058,738.20/858,088,107.30 = 189,106,290.20/x - Step 3: Cross multiply
572,058,738.20x = 858,088,107.30 × 189,106,290.20 - Step 4: Simplify right side
572,058,738.20x = 162,269,858,636,242,528 - Step 5: Solve for x
x = 162,269,858,636,242,528/572,058,738.20 - Step 6: Final answer
x = 283,659,435.30
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Double scale
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Similar ratio
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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.