Finding the Fourth Proportional to 11,285,295.99, 15,578,474.22 and 7,619,176.86
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Solution
The fourth proportional to 11,285,295.99, 15,578,474.22 and 7,619,176.86 is: 10,517,681.63
Step by Step Solution
- Step 1: Write the proportion equation
11,285,295.99 : 15,578,474.22 = 7,619,176.86 : x - Step 2: Convert to fraction form
11,285,295.99/15,578,474.22 = 7,619,176.86/x - Step 3: Cross multiply
11,285,295.99x = 15,578,474.22 × 7,619,176.86 - Step 4: Simplify right side
11,285,295.99x = 118,695,150,291,130.56 - Step 5: Solve for x
x = 118,695,150,291,130.56/11,285,295.99 - Step 6: Final answer
x = 10,517,681.63
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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.