Finding the Fourth Proportional to 2,160,948,744.12, 2,981,879,684.93 and 1,195,179,177.79
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Solution
The fourth proportional to 2,160,948,744.12, 2,981,879,684.93 and 1,195,179,177.79 is: 1,649,220,287.99
Step by Step Solution
- Step 1: Write the proportion equation
2,160,948,744.12 : 2,981,879,684.93 = 1,195,179,177.79 : x - Step 2: Convert to fraction form
2,160,948,744.12/2,981,879,684.93 = 1,195,179,177.79/x - Step 3: Cross multiply
2,160,948,744.12x = 2,981,879,684.93 × 1,195,179,177.79 - Step 4: Simplify right side
2,160,948,744.12x = 3,563,880,510,103,341,568 - Step 5: Solve for x
x = 3,563,880,510,103,341,568/2,160,948,744.12 - Step 6: Final answer
x = 1,649,220,287.99
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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.