Finding the Fourth Proportional to 10,318,351.32, 15,477,562.98 and 3,129,947.16
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Solution
The fourth proportional to 10,318,351.32, 15,477,562.98 and 3,129,947.16 is: 4,694,931.66
Step by Step Solution
- Step 1: Write the proportion equation
10,318,351.32 : 15,477,562.98 = 3,129,947.16 : x - Step 2: Convert to fraction form
10,318,351.32/15,477,562.98 = 3,129,947.16/x - Step 3: Cross multiply
10,318,351.32x = 15,477,562.98 × 3,129,947.16 - Step 4: Simplify right side
10,318,351.32x = 48,443,954,292,972.14 - Step 5: Solve for x
x = 48,443,954,292,972.14/10,318,351.32 - Step 6: Final answer
x = 4,694,931.66
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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.