Finding the Fourth Proportional to 5,756,490.99, 7,943,935.41 and 3,178,152.81
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Solution
The fourth proportional to 5,756,490.99, 7,943,935.41 and 3,178,152.81 is: 4,385,838.65
Step by Step Solution
- Step 1: Write the proportion equation
5,756,490.99 : 7,943,935.41 = 3,178,152.81 : x - Step 2: Convert to fraction form
5,756,490.99/7,943,935.41 = 3,178,152.81/x - Step 3: Cross multiply
5,756,490.99x = 7,943,935.41 × 3,178,152.81 - Step 4: Simplify right side
5,756,490.99x = 25,247,040,645,750.00 - Step 5: Solve for x
x = 25,247,040,645,750.00/5,756,490.99 - Step 6: Final answer
x = 4,385,838.65
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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.