Finding the Fourth Proportional to 12,177,602.76, 16,798,720.74 and 7,529,902.14
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Solution
The fourth proportional to 12,177,602.76, 16,798,720.74 and 7,529,902.14 is: 10,387,325.46
Step by Step Solution
- Step 1: Write the proportion equation
12,177,602.76 : 16,798,720.74 = 7,529,902.14 : x - Step 2: Convert to fraction form
12,177,602.76/16,798,720.74 = 7,529,902.14/x - Step 3: Cross multiply
12,177,602.76x = 16,798,720.74 × 7,529,902.14 - Step 4: Simplify right side
12,177,602.76x = 126,492,723,249,388.36 - Step 5: Solve for x
x = 126,492,723,249,388.36/12,177,602.76 - Step 6: Final answer
x = 10,387,325.46
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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.