Finding the Fourth Proportional to 7,275,772.40, 10,913,658.60 and 2,158,386.80
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Solution
The fourth proportional to 7,275,772.40, 10,913,658.60 and 2,158,386.80 is: 3,237,580.20
Step by Step Solution
- Step 1: Write the proportion equation
7,275,772.40 : 10,913,658.60 = 2,158,386.80 : x - Step 2: Convert to fraction form
7,275,772.40/10,913,658.60 = 2,158,386.80/x - Step 3: Cross multiply
7,275,772.40x = 10,913,658.60 × 2,158,386.80 - Step 4: Simplify right side
7,275,772.40x = 23,555,896,661,946.48 - Step 5: Solve for x
x = 23,555,896,661,946.48/7,275,772.40 - Step 6: Final answer
x = 3,237,580.20
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Double scale
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1.5x scale
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.