Finding the Fourth Proportional to 1,645,319,670.35, 2,270,541,170.36 and 940,486,921.07
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Solution
The fourth proportional to 1,645,319,670.35, 2,270,541,170.36 and 940,486,921.07 is: 1,297,871,965.52
Step by Step Solution
- Step 1: Write the proportion equation
1,645,319,670.35 : 2,270,541,170.36 = 940,486,921.07 : x - Step 2: Convert to fraction form
1,645,319,670.35/2,270,541,170.36 = 940,486,921.07/x - Step 3: Cross multiply
1,645,319,670.35x = 2,270,541,170.36 × 940,486,921.07 - Step 4: Simplify right side
1,645,319,670.35x = 2,135,414,274,469,848,320 - Step 5: Solve for x
x = 2,135,414,274,469,848,320/1,645,319,670.35 - Step 6: Final answer
x = 1,297,871,965.52
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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.