Finding the Fourth Proportional to 3,981,312,029.20, 5,971,968,043.80 and 3,836,193,206.80
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Solution
The fourth proportional to 3,981,312,029.20, 5,971,968,043.80 and 3,836,193,206.80 is: 5,754,289,810.20
Step by Step Solution
- Step 1: Write the proportion equation
3,981,312,029.20 : 5,971,968,043.80 = 3,836,193,206.80 : x - Step 2: Convert to fraction form
3,981,312,029.20/5,971,968,043.80 = 3,836,193,206.80/x - Step 3: Cross multiply
3,981,312,029.20x = 5,971,968,043.80 × 3,836,193,206.80 - Step 4: Simplify right side
3,981,312,029.20x = 22,909,623,240,852,246,528 - Step 5: Solve for x
x = 22,909,623,240,852,246,528/3,981,312,029.20 - Step 6: Final answer
x = 5,754,289,810.20
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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.