Finding the Fourth Proportional to 5,127,882.79, 7,078,657.16 and 3,195,098.31
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Solution
The fourth proportional to 5,127,882.79, 7,078,657.16 and 3,195,098.31 is: 4,410,593.31
Step by Step Solution
- Step 1: Write the proportion equation
5,127,882.79 : 7,078,657.16 = 3,195,098.31 : x - Step 2: Convert to fraction form
5,127,882.79/7,078,657.16 = 3,195,098.31/x - Step 3: Cross multiply
5,127,882.79x = 7,078,657.16 × 3,195,098.31 - Step 4: Simplify right side
5,127,882.79x = 22,617,005,528,985.40 - Step 5: Solve for x
x = 22,617,005,528,985.40/5,127,882.79 - Step 6: Final answer
x = 4,410,593.31
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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.