Finding the Fourth Proportional to 8,459,862.60, 12,689,793.90 and 2,476,230.60
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Solution
The fourth proportional to 8,459,862.60, 12,689,793.90 and 2,476,230.60 is: 3,714,345.90
Step by Step Solution
- Step 1: Write the proportion equation
8,459,862.60 : 12,689,793.90 = 2,476,230.60 : x - Step 2: Convert to fraction form
8,459,862.60/12,689,793.90 = 2,476,230.60/x - Step 3: Cross multiply
8,459,862.60x = 12,689,793.90 × 2,476,230.60 - Step 4: Simplify right side
8,459,862.60x = 31,422,855,962,873.34 - Step 5: Solve for x
x = 31,422,855,962,873.34/8,459,862.60 - Step 6: Final answer
x = 3,714,345.90
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Double scale
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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.