Finding the Fourth Proportional to 14,484,780.20, 21,729,794.70 and 7,278,177.80
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Solution
The fourth proportional to 14,484,780.20, 21,729,794.70 and 7,278,177.80 is: 10,918,585.38
Step by Step Solution
- Step 1: Write the proportion equation
14,484,780.20 : 21,729,794.70 = 7,278,177.80 : x - Step 2: Convert to fraction form
14,484,780.20/21,729,794.70 = 7,278,177.80/x - Step 3: Cross multiply
14,484,780.20x = 21,729,794.70 × 7,278,177.80 - Step 4: Simplify right side
14,484,780.20x = 158,153,309,384,097.66 - Step 5: Solve for x
x = 158,153,309,384,097.66/14,484,780.20 - Step 6: Final answer
x = 10,918,585.38
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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.