Finding the Fourth Proportional to 13,148,284.77, 18,144,284.99 and 7,347,114.18
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Solution
The fourth proportional to 13,148,284.77, 18,144,284.99 and 7,347,114.18 is: 10,138,823.11
Step by Step Solution
- Step 1: Write the proportion equation
13,148,284.77 : 18,144,284.99 = 7,347,114.18 : x - Step 2: Convert to fraction form
13,148,284.77/18,144,284.99 = 7,347,114.18/x - Step 3: Cross multiply
13,148,284.77x = 18,144,284.99 × 7,347,114.18 - Step 4: Simplify right side
13,148,284.77x = 133,308,133,499,254.58 - Step 5: Solve for x
x = 133,308,133,499,254.58/13,148,284.77 - Step 6: Final answer
x = 10,138,823.11
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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.