Finding the Fourth Proportional to 3,497,472,465.20, 5,246,208,697.80 and 912,543,441.20
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Solution
The fourth proportional to 3,497,472,465.20, 5,246,208,697.80 and 912,543,441.20 is: 1,368,815,161.80
Step by Step Solution
- Step 1: Write the proportion equation
3,497,472,465.20 : 5,246,208,697.80 = 912,543,441.20 : x - Step 2: Convert to fraction form
3,497,472,465.20/5,246,208,697.80 = 912,543,441.20/x - Step 3: Cross multiply
3,497,472,465.20x = 5,246,208,697.80 × 912,543,441.20 - Step 4: Simplify right side
3,497,472,465.20x = 4,787,393,338,343,783,424 - Step 5: Solve for x
x = 4,787,393,338,343,783,424/3,497,472,465.20 - Step 6: Final answer
x = 1,368,815,161.80
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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.