Finding the Fourth Proportional to 10,088,647.20, 15,132,970.80 and 8,317,177.20
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Solution
The fourth proportional to 10,088,647.20, 15,132,970.80 and 8,317,177.20 is: 12,475,765.80
Step by Step Solution
- Step 1: Write the proportion equation
10,088,647.20 : 15,132,970.80 = 8,317,177.20 : x - Step 2: Convert to fraction form
10,088,647.20/15,132,970.80 = 8,317,177.20/x - Step 3: Cross multiply
10,088,647.20x = 15,132,970.80 × 8,317,177.20 - Step 4: Simplify right side
10,088,647.20x = 125,863,599,706,025.77 - Step 5: Solve for x
x = 125,863,599,706,025.77/10,088,647.20 - Step 6: Final answer
x = 12,475,765.80
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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.