Finding the Fourth Proportional to 14,139,679.19, 21,218,819.00 and 7,754,415.57
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Solution
The fourth proportional to 14,139,679.19, 21,218,819.00 and 7,754,415.57 is: 11,636,723.74
Step by Step Solution
- Step 1: Write the proportion equation
14,139,679.19 : 21,218,819.00 = 7,754,415.57 : x - Step 2: Convert to fraction form
14,139,679.19/21,218,819.00 = 7,754,415.57/x - Step 3: Cross multiply
14,139,679.19x = 21,218,819.00 × 7,754,415.57 - Step 4: Simplify right side
14,139,679.19x = 164,539,540,391,839.78 - Step 5: Solve for x
x = 164,539,540,391,839.78/14,139,679.19 - Step 6: Final answer
x = 11,636,723.74
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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.