Finding the Fourth Proportional to 870,778,628.02, 1,305,686,102.18 and 345,615,717.70
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Solution
The fourth proportional to 870,778,628.02, 1,305,686,102.18 and 345,615,717.70 is: 518,232,332.28
Step by Step Solution
- Step 1: Write the proportion equation
870,778,628.02 : 1,305,686,102.18 = 345,615,717.70 : x - Step 2: Convert to fraction form
870,778,628.02/1,305,686,102.18 = 345,615,717.70/x - Step 3: Cross multiply
870,778,628.02x = 1,305,686,102.18 × 345,615,717.70 - Step 4: Simplify right side
870,778,628.02x = 451,265,639,295,856,256 - Step 5: Solve for x
x = 451,265,639,295,856,256/870,778,628.02 - Step 6: Final answer
x = 518,232,332.28
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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.