Finding the Fourth Proportional to 5,283,685.81, 7,291,363.06 and 3,108,369.05
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Solution
The fourth proportional to 5,283,685.81, 7,291,363.06 and 3,108,369.05 is: 4,289,476.72
Step by Step Solution
- Step 1: Write the proportion equation
5,283,685.81 : 7,291,363.06 = 3,108,369.05 : x - Step 2: Convert to fraction form
5,283,685.81/7,291,363.06 = 3,108,369.05/x - Step 3: Cross multiply
5,283,685.81x = 7,291,363.06 × 3,108,369.05 - Step 4: Simplify right side
5,283,685.81x = 22,664,247,268,017.29 - Step 5: Solve for x
x = 22,664,247,268,017.29/5,283,685.81 - Step 6: Final answer
x = 4,289,476.72
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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.