Finding the Fourth Proportional to 5,390,789.64, 7,439,393.28 and 2,943,497.68
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Solution
The fourth proportional to 5,390,789.64, 7,439,393.28 and 2,943,497.68 is: 4,062,083.35
Step by Step Solution
- Step 1: Write the proportion equation
5,390,789.64 : 7,439,393.28 = 2,943,497.68 : x - Step 2: Convert to fraction form
5,390,789.64/7,439,393.28 = 2,943,497.68/x - Step 3: Cross multiply
5,390,789.64x = 7,439,393.28 × 2,943,497.68 - Step 4: Simplify right side
5,390,789.64x = 21,897,836,860,287.59 - Step 5: Solve for x
x = 21,897,836,860,287.59/5,390,789.64 - Step 6: Final answer
x = 4,062,083.35
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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.