Finding the Fourth Proportional to 13,840,134.12, 19,099,964.76 and 7,959,772.20
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Solution
The fourth proportional to 13,840,134.12, 19,099,964.76 and 7,959,772.20 is: 10,984,819.02
Step by Step Solution
- Step 1: Write the proportion equation
13,840,134.12 : 19,099,964.76 = 7,959,772.20 : x - Step 2: Convert to fraction form
13,840,134.12/19,099,964.76 = 7,959,772.20/x - Step 3: Cross multiply
13,840,134.12x = 19,099,964.76 × 7,959,772.20 - Step 4: Simplify right side
13,840,134.12x = 152,031,368,517,627.69 - Step 5: Solve for x
x = 152,031,368,517,627.69/13,840,134.12 - Step 6: Final answer
x = 10,984,819.02
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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.