Finding the Fourth Proportional to 5,390,574.14, 7,439,644.65 and 3,068,031.38
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Solution
The fourth proportional to 5,390,574.14, 7,439,644.65 and 3,068,031.38 is: 4,234,254.57
Step by Step Solution
- Step 1: Write the proportion equation
5,390,574.14 : 7,439,644.65 = 3,068,031.38 : x - Step 2: Convert to fraction form
5,390,574.14/7,439,644.65 = 3,068,031.38/x - Step 3: Cross multiply
5,390,574.14x = 7,439,644.65 × 3,068,031.38 - Step 4: Simplify right side
5,390,574.14x = 22,825,063,216,556.01 - Step 5: Solve for x
x = 22,825,063,216,556.01/5,390,574.14 - Step 6: Final answer
x = 4,234,254.57
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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.