Finding the Fourth Proportional to 12,344,284.98, 18,517,313.21 and 4,257,141.71
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Solution
The fourth proportional to 12,344,284.98, 18,517,313.21 and 4,257,141.71 is: 6,386,018.02
Step by Step Solution
- Step 1: Write the proportion equation
12,344,284.98 : 18,517,313.21 = 4,257,141.71 : x - Step 2: Convert to fraction form
12,344,284.98/18,517,313.21 = 4,257,141.71/x - Step 3: Cross multiply
12,344,284.98x = 18,517,313.21 × 4,257,141.71 - Step 4: Simplify right side
12,344,284.98x = 78,830,826,309,552.70 - Step 5: Solve for x
x = 78,830,826,309,552.70/12,344,284.98 - Step 6: Final answer
x = 6,386,018.02
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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.