Finding the Fourth Proportional to 7,253,602.70, 10,009,576.35 and 3,989,890.53
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Solution
The fourth proportional to 7,253,602.70, 10,009,576.35 and 3,989,890.53 is: 5,505,831.46
Step by Step Solution
- Step 1: Write the proportion equation
7,253,602.70 : 10,009,576.35 = 3,989,890.53 : x - Step 2: Convert to fraction form
7,253,602.70/10,009,576.35 = 3,989,890.53/x - Step 3: Cross multiply
7,253,602.70x = 10,009,576.35 × 3,989,890.53 - Step 4: Simplify right side
7,253,602.70x = 39,937,113,888,176.96 - Step 5: Solve for x
x = 39,937,113,888,176.96/7,253,602.70 - Step 6: Final answer
x = 5,505,831.46
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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.