Finding the Fourth Proportional to 1,475,836,612.79, 2,213,759,121.80 and 426,660,227.06
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Solution
The fourth proportional to 1,475,836,612.79, 2,213,759,121.80 and 426,660,227.06 is: 639,991,555.55
Step by Step Solution
- Step 1: Write the proportion equation
1,475,836,612.79 : 2,213,759,121.80 = 426,660,227.06 : x - Step 2: Convert to fraction form
1,475,836,612.79/2,213,759,121.80 = 426,660,227.06/x - Step 3: Cross multiply
1,475,836,612.79x = 2,213,759,121.80 × 426,660,227.06 - Step 4: Simplify right side
1,475,836,612.79x = 944,522,969,550,132,096 - Step 5: Solve for x
x = 944,522,969,550,132,096/1,475,836,612.79 - Step 6: Final answer
x = 639,991,555.55
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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.