Finding the Fourth Proportional to 1,645,157,758.70, 2,270,317,707.22 and 940,324,873.75
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Solution
The fourth proportional to 1,645,157,758.70, 2,270,317,707.22 and 940,324,873.75 is: 1,297,648,325.90
Step by Step Solution
- Step 1: Write the proportion equation
1,645,157,758.70 : 2,270,317,707.22 = 940,324,873.75 : x - Step 2: Convert to fraction form
1,645,157,758.70/2,270,317,707.22 = 940,324,873.75/x - Step 3: Cross multiply
1,645,157,758.70x = 2,270,317,707.22 × 940,324,873.75 - Step 4: Simplify right side
1,645,157,758.70x = 2,134,836,211,420,577,792 - Step 5: Solve for x
x = 2,134,836,211,420,577,792/1,645,157,758.70 - Step 6: Final answer
x = 1,297,648,325.90
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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.