Finding the Fourth Proportional to 5,138,373.67, 7,090,438.89 and 2,846,106.07
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Solution
The fourth proportional to 5,138,373.67, 7,090,438.89 and 2,846,106.07 is: 3,927,340.14
Step by Step Solution
- Step 1: Write the proportion equation
5,138,373.67 : 7,090,438.89 = 2,846,106.07 : x - Step 2: Convert to fraction form
5,138,373.67/7,090,438.89 = 2,846,106.07/x - Step 3: Cross multiply
5,138,373.67x = 7,090,438.89 × 2,846,106.07 - Step 4: Simplify right side
5,138,373.67x = 20,180,141,163,793.06 - Step 5: Solve for x
x = 20,180,141,163,793.06/5,138,373.67 - Step 6: Final answer
x = 3,927,340.14
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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.