Finding the Fourth Proportional to 18,447,130.80, 27,670,696.20 and 6,479,866.80
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Solution
The fourth proportional to 18,447,130.80, 27,670,696.20 and 6,479,866.80 is: 9,719,800.20
Step by Step Solution
- Step 1: Write the proportion equation
18,447,130.80 : 27,670,696.20 = 6,479,866.80 : x - Step 2: Convert to fraction form
18,447,130.80/27,670,696.20 = 6,479,866.80/x - Step 3: Cross multiply
18,447,130.80x = 27,670,696.20 × 6,479,866.80 - Step 4: Simplify right side
18,447,130.80x = 179,302,425,639,266.16 - Step 5: Solve for x
x = 179,302,425,639,266.16/18,447,130.80 - Step 6: Final answer
x = 9,719,800.20
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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.