Finding the Fourth Proportional to 10,220,739.21, 15,341,742.50 and 7,528,104.81
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Solution
The fourth proportional to 10,220,739.21, 15,341,742.50 and 7,528,104.81 is: 11,299,989.47
Step by Step Solution
- Step 1: Write the proportion equation
10,220,739.21 : 15,341,742.50 = 7,528,104.81 : x - Step 2: Convert to fraction form
10,220,739.21/15,341,742.50 = 7,528,104.81/x - Step 3: Cross multiply
10,220,739.21x = 15,341,742.50 × 7,528,104.81 - Step 4: Simplify right side
10,220,739.21x = 115,494,245,470,390.89 - Step 5: Solve for x
x = 115,494,245,470,390.89/10,220,739.21 - Step 6: Final answer
x = 11,299,989.47
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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.