Finding the Fourth Proportional to 5,130,287.20, 7,695,430.80 and 1,344,152.80
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Solution
The fourth proportional to 5,130,287.20, 7,695,430.80 and 1,344,152.80 is: 2,016,229.20
Step by Step Solution
- Step 1: Write the proportion equation
5,130,287.20 : 7,695,430.80 = 1,344,152.80 : x - Step 2: Convert to fraction form
5,130,287.20/7,695,430.80 = 1,344,152.80/x - Step 3: Cross multiply
5,130,287.20x = 7,695,430.80 × 1,344,152.80 - Step 4: Simplify right side
5,130,287.20x = 10,343,834,857,026.24 - Step 5: Solve for x
x = 10,343,834,857,026.24/5,130,287.20 - Step 6: Final answer
x = 2,016,229.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.