Finding the Fourth Proportional to 21,515,098.62, 29,689,969.98 and 11,725,332.12
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Solution
The fourth proportional to 21,515,098.62, 29,689,969.98 and 11,725,332.12 is: 16,180,486.31
Step by Step Solution
- Step 1: Write the proportion equation
21,515,098.62 : 29,689,969.98 = 11,725,332.12 : x - Step 2: Convert to fraction form
21,515,098.62/29,689,969.98 = 11,725,332.12/x - Step 3: Cross multiply
21,515,098.62x = 29,689,969.98 × 11,725,332.12 - Step 4: Simplify right side
21,515,098.62x = 348,124,758,648,329.75 - Step 5: Solve for x
x = 348,124,758,648,329.75/21,515,098.62 - Step 6: Final answer
x = 16,180,486.31
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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.