Finding the Fourth Proportional to 2,865,808.54, 3,955,094.90 and 2,139,394.87
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Solution
The fourth proportional to 2,865,808.54, 3,955,094.90 and 2,139,394.87 is: 2,952,573.28
Step by Step Solution
- Step 1: Write the proportion equation
2,865,808.54 : 3,955,094.90 = 2,139,394.87 : x - Step 2: Convert to fraction form
2,865,808.54/3,955,094.90 = 2,139,394.87/x - Step 3: Cross multiply
2,865,808.54x = 3,955,094.90 × 2,139,394.87 - Step 4: Simplify right side
2,865,808.54x = 8,461,509,728,726.19 - Step 5: Solve for x
x = 8,461,509,728,726.19/2,865,808.54 - Step 6: Final answer
x = 2,952,573.28
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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.