Finding the Fourth Proportional to 7,761,029.50, 10,632,658.79 and 7,470,125.74
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Solution
The fourth proportional to 7,761,029.50, 10,632,658.79 and 7,470,125.74 is: 10,234,118.83
Step by Step Solution
- Step 1: Write the proportion equation
7,761,029.50 : 10,632,658.79 = 7,470,125.74 : x - Step 2: Convert to fraction form
7,761,029.50/10,632,658.79 = 7,470,125.74/x - Step 3: Cross multiply
7,761,029.50x = 10,632,658.79 × 7,470,125.74 - Step 4: Simplify right side
7,761,029.50x = 79,427,298,111,816.25 - Step 5: Solve for x
x = 79,427,298,111,816.25/7,761,029.50 - Step 6: Final answer
x = 10,234,118.83
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.