Finding the Fourth Proportional to 10,529,998.80, 14,533,643.40 and 7,226,811.60
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Solution
The fourth proportional to 10,529,998.80, 14,533,643.40 and 7,226,811.60 is: 9,974,540.81
Step by Step Solution
- Step 1: Write the proportion equation
10,529,998.80 : 14,533,643.40 = 7,226,811.60 : x - Step 2: Convert to fraction form
10,529,998.80/14,533,643.40 = 7,226,811.60/x - Step 3: Cross multiply
10,529,998.80x = 14,533,643.40 × 7,226,811.60 - Step 4: Simplify right side
10,529,998.80x = 105,031,902,713,383.44 - Step 5: Solve for x
x = 105,031,902,713,383.44/10,529,998.80 - Step 6: Final answer
x = 9,974,540.81
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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.