Finding the Fourth Proportional to 11,689,010.40, 16,129,437.12 and 6,461,312.34
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Solution
The fourth proportional to 11,689,010.40, 16,129,437.12 and 6,461,312.34 is: 8,915,838.68
Step by Step Solution
- Step 1: Write the proportion equation
11,689,010.40 : 16,129,437.12 = 6,461,312.34 : x - Step 2: Convert to fraction form
11,689,010.40/16,129,437.12 = 6,461,312.34/x - Step 3: Cross multiply
11,689,010.40x = 16,129,437.12 × 6,461,312.34 - Step 4: Simplify right side
11,689,010.40x = 104,217,331,100,710.05 - Step 5: Solve for x
x = 104,217,331,100,710.05/11,689,010.40 - Step 6: Final answer
x = 8,915,838.68
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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.