Finding the Fourth Proportional to 19,560,780.20, 29,313,176.70 and 14,402,959.40
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Solution
The fourth proportional to 19,560,780.20, 29,313,176.70 and 14,402,959.40 is: 21,583,826.90
Step by Step Solution
- Step 1: Write the proportion equation
19,560,780.20 : 29,313,176.70 = 14,402,959.40 : x - Step 2: Convert to fraction form
19,560,780.20/29,313,176.70 = 14,402,959.40/x - Step 3: Cross multiply
19,560,780.20x = 29,313,176.70 × 14,402,959.40 - Step 4: Simplify right side
19,560,780.20x = 422,196,493,895,126 - Step 5: Solve for x
x = 422,196,493,895,126/19,560,780.20 - Step 6: Final answer
x = 21,583,826.90
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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.