Finding the Fourth Proportional to 13,272,421.68, 18,306,163.20 and 10,009,373.92
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Solution
The fourth proportional to 13,272,421.68, 18,306,163.20 and 10,009,373.92 is: 13,805,561.41
Step by Step Solution
- Step 1: Write the proportion equation
13,272,421.68 : 18,306,163.20 = 10,009,373.92 : x - Step 2: Convert to fraction form
13,272,421.68/18,306,163.20 = 10,009,373.92/x - Step 3: Cross multiply
13,272,421.68x = 18,306,163.20 × 10,009,373.92 - Step 4: Simplify right side
13,272,421.68x = 183,233,232,509,343.75 - Step 5: Solve for x
x = 183,233,232,509,343.75/13,272,421.68 - Step 6: Final answer
x = 13,805,561.41
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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.