Finding the Fourth Proportional to 15,800,465.36, 21,804,642.20 and 8,557,121.36
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Solution
The fourth proportional to 15,800,465.36, 21,804,642.20 and 8,557,121.36 is: 11,808,827.48
Step by Step Solution
- Step 1: Write the proportion equation
15,800,465.36 : 21,804,642.20 = 8,557,121.36 : x - Step 2: Convert to fraction form
15,800,465.36/21,804,642.20 = 8,557,121.36/x - Step 3: Cross multiply
15,800,465.36x = 21,804,642.20 × 8,557,121.36 - Step 4: Simplify right side
15,800,465.36x = 186,584,969,516,777.38 - Step 5: Solve for x
x = 186,584,969,516,777.38/15,800,465.36 - Step 6: Final answer
x = 11,808,827.48
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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.