Finding the Fourth Proportional to 18,535,708.05, 27,803,562.08 and 15,386,428.05
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Solution
The fourth proportional to 18,535,708.05, 27,803,562.08 and 15,386,428.05 is: 23,079,642.08
Step by Step Solution
- Step 1: Write the proportion equation
18,535,708.05 : 27,803,562.08 = 15,386,428.05 : x - Step 2: Convert to fraction form
18,535,708.05/27,803,562.08 = 15,386,428.05/x - Step 3: Cross multiply
18,535,708.05x = 27,803,562.08 × 15,386,428.05 - Step 4: Simplify right side
18,535,708.05x = 427,797,507,400,696.19 - Step 5: Solve for x
x = 427,797,507,400,696.19/18,535,708.05 - Step 6: Final answer
x = 23,079,642.08
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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.