Finding the Fourth Proportional to 9,969,216.80, 14,953,825.20 and 8,374,893.80
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Solution
The fourth proportional to 9,969,216.80, 14,953,825.20 and 8,374,893.80 is: 12,562,340.70
Step by Step Solution
- Step 1: Write the proportion equation
9,969,216.80 : 14,953,825.20 = 8,374,893.80 : x - Step 2: Convert to fraction form
9,969,216.80/14,953,825.20 = 8,374,893.80/x - Step 3: Cross multiply
9,969,216.80x = 14,953,825.20 × 8,374,893.80 - Step 4: Simplify right side
9,969,216.80x = 125,236,697,953,763.75 - Step 5: Solve for x
x = 125,236,697,953,763.75/9,969,216.80 - Step 6: Final answer
x = 12,562,340.70
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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.