Finding the Fourth Proportional to 1,081,471,552.80, 1,622,207,329.20 and 717,965,908.80
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Solution
The fourth proportional to 1,081,471,552.80, 1,622,207,329.20 and 717,965,908.80 is: 1,076,948,863.20
Step by Step Solution
- Step 1: Write the proportion equation
1,081,471,552.80 : 1,622,207,329.20 = 717,965,908.80 : x - Step 2: Convert to fraction form
1,081,471,552.80/1,622,207,329.20 = 717,965,908.80/x - Step 3: Cross multiply
1,081,471,552.80x = 1,622,207,329.20 × 717,965,908.80 - Step 4: Simplify right side
1,081,471,552.80x = 1,164,689,559,371,098,624 - Step 5: Solve for x
x = 1,164,689,559,371,098,624/1,081,471,552.80 - Step 6: Final answer
x = 1,076,948,863.20
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1.5x scale
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.