Finding the Fourth Proportional to 5,430,810.42, 7,493,686.02 and 3,138,528.78
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Solution
The fourth proportional to 5,430,810.42, 7,493,686.02 and 3,138,528.78 is: 4,330,688.69
Step by Step Solution
- Step 1: Write the proportion equation
5,430,810.42 : 7,493,686.02 = 3,138,528.78 : x - Step 2: Convert to fraction form
5,430,810.42/7,493,686.02 = 3,138,528.78/x - Step 3: Cross multiply
5,430,810.42x = 7,493,686.02 × 3,138,528.78 - Step 4: Simplify right side
5,430,810.42x = 23,519,149,242,053.65 - Step 5: Solve for x
x = 23,519,149,242,053.65/5,430,810.42 - Step 6: Final answer
x = 4,330,688.69
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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.