Finding the Fourth Proportional to 7,220,927.20, 10,828,766.40 and 2,428,772.80
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Solution
The fourth proportional to 7,220,927.20, 10,828,766.40 and 2,428,772.80 is: 3,642,276.48
Step by Step Solution
- Step 1: Write the proportion equation
7,220,927.20 : 10,828,766.40 = 2,428,772.80 : x - Step 2: Convert to fraction form
7,220,927.20/10,828,766.40 = 2,428,772.80/x - Step 3: Cross multiply
7,220,927.20x = 10,828,766.40 × 2,428,772.80 - Step 4: Simplify right side
7,220,927.20x = 26,300,613,289,873.92 - Step 5: Solve for x
x = 26,300,613,289,873.92/7,220,927.20 - Step 6: Final answer
x = 3,642,276.48
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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.