Finding the Fourth Proportional to 3,497,472,457.20, 5,246,208,685.80 and 912,543,433.20
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Solution
The fourth proportional to 3,497,472,457.20, 5,246,208,685.80 and 912,543,433.20 is: 1,368,815,149.80
Step by Step Solution
- Step 1: Write the proportion equation
3,497,472,457.20 : 5,246,208,685.80 = 912,543,433.20 : x - Step 2: Convert to fraction form
3,497,472,457.20/5,246,208,685.80 = 912,543,433.20/x - Step 3: Cross multiply
3,497,472,457.20x = 5,246,208,685.80 × 912,543,433.20 - Step 4: Simplify right side
3,497,472,457.20x = 4,787,393,285,423,592,448 - Step 5: Solve for x
x = 4,787,393,285,423,592,448/3,497,472,457.20 - Step 6: Final answer
x = 1,368,815,149.80
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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.