Finding the Fourth Proportional to 5,423,018.18, 7,484,428.80 and 3,131,175.02
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Solution
The fourth proportional to 5,423,018.18, 7,484,428.80 and 3,131,175.02 is: 4,321,404.75
Step by Step Solution
- Step 1: Write the proportion equation
5,423,018.18 : 7,484,428.80 = 3,131,175.02 : x - Step 2: Convert to fraction form
5,423,018.18/7,484,428.80 = 3,131,175.02/x - Step 3: Cross multiply
5,423,018.18x = 7,484,428.80 × 3,131,175.02 - Step 4: Simplify right side
5,423,018.18x = 23,435,056,497,528.57 - Step 5: Solve for x
x = 23,435,056,497,528.57/5,423,018.18 - Step 6: Final answer
x = 4,321,404.75
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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.