Finding the Fourth Proportional to 5,343,312.80, 7,373,662.80 and 2,928,864.80
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Solution
The fourth proportional to 5,343,312.80, 7,373,662.80 and 2,928,864.80 is: 4,041,773.75
Step by Step Solution
- Step 1: Write the proportion equation
5,343,312.80 : 7,373,662.80 = 2,928,864.80 : x - Step 2: Convert to fraction form
5,343,312.80/7,373,662.80 = 2,928,864.80/x - Step 3: Cross multiply
5,343,312.80x = 7,373,662.80 × 2,928,864.80 - Step 4: Simplify right side
5,343,312.80x = 21,596,461,421,989.44 - Step 5: Solve for x
x = 21,596,461,421,989.44/5,343,312.80 - Step 6: Final answer
x = 4,041,773.75
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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.