Finding the Fourth Proportional to 11,582,472.24, 15,970,642.20 and 7,390,518.12
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Solution
The fourth proportional to 11,582,472.24, 15,970,642.20 and 7,390,518.12 is: 10,190,511.85
Step by Step Solution
- Step 1: Write the proportion equation
11,582,472.24 : 15,970,642.20 = 7,390,518.12 : x - Step 2: Convert to fraction form
11,582,472.24/15,970,642.20 = 7,390,518.12/x - Step 3: Cross multiply
11,582,472.24x = 15,970,642.20 × 7,390,518.12 - Step 4: Simplify right side
11,582,472.24x = 118,031,320,567,136.66 - Step 5: Solve for x
x = 118,031,320,567,136.66/11,582,472.24 - Step 6: Final answer
x = 10,190,511.85
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1.5x scale
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.