Finding the Fourth Proportional to 14,652,482.80, 20,221,668.48 and 8,128,214.14
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Solution
The fourth proportional to 14,652,482.80, 20,221,668.48 and 8,128,214.14 is: 11,217,624.61
Step by Step Solution
- Step 1: Write the proportion equation
14,652,482.80 : 20,221,668.48 = 8,128,214.14 : x - Step 2: Convert to fraction form
14,652,482.80/20,221,668.48 = 8,128,214.14/x - Step 3: Cross multiply
14,652,482.80x = 20,221,668.48 × 8,128,214.14 - Step 4: Simplify right side
14,652,482.80x = 164,366,051,673,528.31 - Step 5: Solve for x
x = 164,366,051,673,528.31/14,652,482.80 - Step 6: Final answer
x = 11,217,624.61
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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.