Finding the Fourth Proportional to 6,388,462.20, 8,816,202.51 and 3,487,860.48
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Solution
The fourth proportional to 6,388,462.20, 8,816,202.51 and 3,487,860.48 is: 4,813,315.53
Step by Step Solution
- Step 1: Write the proportion equation
6,388,462.20 : 8,816,202.51 = 3,487,860.48 : x - Step 2: Convert to fraction form
6,388,462.20/8,816,202.51 = 3,487,860.48/x - Step 3: Cross multiply
6,388,462.20x = 8,816,202.51 × 3,487,860.48 - Step 4: Simplify right side
6,388,462.20x = 30,749,684,318,305.80 - Step 5: Solve for x
x = 30,749,684,318,305.80/6,388,462.20 - Step 6: Final answer
x = 4,813,315.53
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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.