Finding the Fourth Proportional to 5,518,673.91, 7,611,472.40 and 4,705,576.47
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Solution
The fourth proportional to 5,518,673.91, 7,611,472.40 and 4,705,576.47 is: 6,490,031.12
Step by Step Solution
- Step 1: Write the proportion equation
5,518,673.91 : 7,611,472.40 = 4,705,576.47 : x - Step 2: Convert to fraction form
5,518,673.91/7,611,472.40 = 4,705,576.47/x - Step 3: Cross multiply
5,518,673.91x = 7,611,472.40 × 4,705,576.47 - Step 4: Simplify right side
5,518,673.91x = 35,816,365,403,966.54 - Step 5: Solve for x
x = 35,816,365,403,966.54/5,518,673.91 - Step 6: Final answer
x = 6,490,031.12
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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.