Finding the Fourth Proportional to 8,722,416.68, 12,034,875.96 and 7,332,263.60
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Solution
The fourth proportional to 8,722,416.68, 12,034,875.96 and 7,332,263.60 is: 10,116,792.88
Step by Step Solution
- Step 1: Write the proportion equation
8,722,416.68 : 12,034,875.96 = 7,332,263.60 : x - Step 2: Convert to fraction form
8,722,416.68/12,034,875.96 = 7,332,263.60/x - Step 3: Cross multiply
8,722,416.68x = 12,034,875.96 × 7,332,263.60 - Step 4: Simplify right side
8,722,416.68x = 88,242,882,932,023.06 - Step 5: Solve for x
x = 88,242,882,932,023.06/8,722,416.68 - Step 6: Final answer
x = 10,116,792.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.