Finding the Fourth Proportional to 1,889,568,007.80, 2,834,352,011.70 and 971,237,959.80
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Solution
The fourth proportional to 1,889,568,007.80, 2,834,352,011.70 and 971,237,959.80 is: 1,456,856,939.70
Step by Step Solution
- Step 1: Write the proportion equation
1,889,568,007.80 : 2,834,352,011.70 = 971,237,959.80 : x - Step 2: Convert to fraction form
1,889,568,007.80/2,834,352,011.70 = 971,237,959.80/x - Step 3: Cross multiply
1,889,568,007.80x = 2,834,352,011.70 × 971,237,959.80 - Step 4: Simplify right side
1,889,568,007.80x = 2,752,830,265,198,533,632 - Step 5: Solve for x
x = 2,752,830,265,198,533,632/1,889,568,007.80 - Step 6: Final answer
x = 1,456,856,939.70
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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.