Finding the Fourth Proportional to 21,343,867.94, 29,454,503.87 and 11,554,309.53
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Solution
The fourth proportional to 21,343,867.94, 29,454,503.87 and 11,554,309.53 is: 15,944,928.81
Step by Step Solution
- Step 1: Write the proportion equation
21,343,867.94 : 29,454,503.87 = 11,554,309.53 : x - Step 2: Convert to fraction form
21,343,867.94/29,454,503.87 = 11,554,309.53/x - Step 3: Cross multiply
21,343,867.94x = 29,454,503.87 × 11,554,309.53 - Step 4: Simplify right side
21,343,867.94x = 340,326,454,879,115.38 - Step 5: Solve for x
x = 340,326,454,879,115.38/21,343,867.94 - Step 6: Final answer
x = 15,944,928.81
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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.