Finding the Fourth Proportional to 18,535,713.30, 27,803,569.95 and 15,386,433.30
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Solution
The fourth proportional to 18,535,713.30, 27,803,569.95 and 15,386,433.30 is: 23,079,649.95
Step by Step Solution
- Step 1: Write the proportion equation
18,535,713.30 : 27,803,569.95 = 15,386,433.30 : x - Step 2: Convert to fraction form
18,535,713.30/27,803,569.95 = 15,386,433.30/x - Step 3: Cross multiply
18,535,713.30x = 27,803,569.95 × 15,386,433.30 - Step 4: Simplify right side
18,535,713.30x = 427,797,774,537,559.38 - Step 5: Solve for x
x = 427,797,774,537,559.38/18,535,713.30 - Step 6: Final answer
x = 23,079,649.95
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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.