Finding the Fourth Proportional to 12,983,342.70, 19,475,014.05 and 5,409,324.30
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Solution
The fourth proportional to 12,983,342.70, 19,475,014.05 and 5,409,324.30 is: 8,113,986.45
Step by Step Solution
- Step 1: Write the proportion equation
12,983,342.70 : 19,475,014.05 = 5,409,324.30 : x - Step 2: Convert to fraction form
12,983,342.70/19,475,014.05 = 5,409,324.30/x - Step 3: Cross multiply
12,983,342.70x = 19,475,014.05 × 5,409,324.30 - Step 4: Simplify right side
12,983,342.70x = 105,346,666,743,506.42 - Step 5: Solve for x
x = 105,346,666,743,506.42/12,983,342.70 - Step 6: Final answer
x = 8,113,986.45
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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.