Finding the Fourth Proportional to 19,520,863.26, 29,249,277.21 and 13,830,930.78
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Solution
The fourth proportional to 19,520,863.26, 29,249,277.21 and 13,830,930.78 is: 20,723,710.99
Step by Step Solution
- Step 1: Write the proportion equation
19,520,863.26 : 29,249,277.21 = 13,830,930.78 : x - Step 2: Convert to fraction form
19,520,863.26/29,249,277.21 = 13,830,930.78/x - Step 3: Cross multiply
19,520,863.26x = 29,249,277.21 × 13,830,930.78 - Step 4: Simplify right side
19,520,863.26x = 404,544,728,456,541.50 - Step 5: Solve for x
x = 404,544,728,456,541.50/19,520,863.26 - Step 6: Final answer
x = 20,723,710.99
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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.