Finding the Fourth Proportional to 15,107,124.81, 22,667,385.11 and 7,916,949.21
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Solution
The fourth proportional to 15,107,124.81, 22,667,385.11 and 7,916,949.21 is: 11,878,933.87
Step by Step Solution
- Step 1: Write the proportion equation
15,107,124.81 : 22,667,385.11 = 7,916,949.21 : x - Step 2: Convert to fraction form
15,107,124.81/22,667,385.11 = 7,916,949.21/x - Step 3: Cross multiply
15,107,124.81x = 22,667,385.11 × 7,916,949.21 - Step 4: Simplify right side
15,107,124.81x = 179,456,536,599,795.53 - Step 5: Solve for x
x = 179,456,536,599,795.53/15,107,124.81 - Step 6: Final answer
x = 11,878,933.87
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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.