Finding the Fourth Proportional to 7,146,374.81, 9,862,059.71 and 3,883,189.53
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Solution
The fourth proportional to 7,146,374.81, 9,862,059.71 and 3,883,189.53 is: 5,358,835.50
Step by Step Solution
- Step 1: Write the proportion equation
7,146,374.81 : 9,862,059.71 = 3,883,189.53 : x - Step 2: Convert to fraction form
7,146,374.81/9,862,059.71 = 3,883,189.53/x - Step 3: Cross multiply
7,146,374.81x = 9,862,059.71 × 3,883,189.53 - Step 4: Simplify right side
7,146,374.81x = 38,296,247,010,106.84 - Step 5: Solve for x
x = 38,296,247,010,106.84/7,146,374.81 - Step 6: Final answer
x = 5,358,835.50
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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.