Finding the Fourth Proportional to 858,886,254.81, 1,185,278,702.74 and 477,444,107.97
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Solution
The fourth proportional to 858,886,254.81, 1,185,278,702.74 and 477,444,107.97 is: 658,881,580.37
Step by Step Solution
- Step 1: Write the proportion equation
858,886,254.81 : 1,185,278,702.74 = 477,444,107.97 : x - Step 2: Convert to fraction form
858,886,254.81/1,185,278,702.74 = 477,444,107.97/x - Step 3: Cross multiply
858,886,254.81x = 1,185,278,702.74 × 477,444,107.97 - Step 4: Simplify right side
858,886,254.81x = 565,904,332,924,344,512 - Step 5: Solve for x
x = 565,904,332,924,344,512/858,886,254.81 - Step 6: Final answer
x = 658,881,580.37
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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.