Finding the Fourth Proportional to 28,763,667.29, 39,693,624.99 and 15,710,934.44
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Solution
The fourth proportional to 28,763,667.29, 39,693,624.99 and 15,710,934.44 is: 21,680,960.69
Step by Step Solution
- Step 1: Write the proportion equation
28,763,667.29 : 39,693,624.99 = 15,710,934.44 : x - Step 2: Convert to fraction form
28,763,667.29/39,693,624.99 = 15,710,934.44/x - Step 3: Cross multiply
28,763,667.29x = 39,693,624.99 × 15,710,934.44 - Step 4: Simplify right side
28,763,667.29x = 623,623,939,705,367.62 - Step 5: Solve for x
x = 623,623,939,705,367.62/28,763,667.29 - Step 6: Final answer
x = 21,680,960.69
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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.