Finding the Fourth Proportional to 10,134,209.20, 15,203,905.80 and 7,148,225.20
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Solution
The fourth proportional to 10,134,209.20, 15,203,905.80 and 7,148,225.20 is: 10,724,166.08
Step by Step Solution
- Step 1: Write the proportion equation
10,134,209.20 : 15,203,905.80 = 7,148,225.20 : x - Step 2: Convert to fraction form
10,134,209.20/15,203,905.80 = 7,148,225.20/x - Step 3: Cross multiply
10,134,209.20x = 15,203,905.80 × 7,148,225.20 - Step 4: Simplify right side
10,134,209.20x = 108,680,942,577,986.17 - Step 5: Solve for x
x = 108,680,942,577,986.17/10,134,209.20 - Step 6: Final answer
x = 10,724,166.08
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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.