Finding the Fourth Proportional to 21,464,830.27, 29,618,774.56 and 14,510,639.26
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Solution
The fourth proportional to 21,464,830.27, 29,618,774.56 and 14,510,639.26 is: 20,022,862.87
Step by Step Solution
- Step 1: Write the proportion equation
21,464,830.27 : 29,618,774.56 = 14,510,639.26 : x - Step 2: Convert to fraction form
21,464,830.27/29,618,774.56 = 14,510,639.26/x - Step 3: Cross multiply
21,464,830.27x = 29,618,774.56 × 14,510,639.26 - Step 4: Simplify right side
21,464,830.27x = 429,787,352,963,425.19 - Step 5: Solve for x
x = 429,787,352,963,425.19/21,464,830.27 - Step 6: Final answer
x = 20,022,862.87
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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.