Finding the Fourth Proportional to 10,134,228.20, 15,203,934.30 and 7,148,244.20
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Solution
The fourth proportional to 10,134,228.20, 15,203,934.30 and 7,148,244.20 is: 10,724,194.58
Step by Step Solution
- Step 1: Write the proportion equation
10,134,228.20 : 15,203,934.30 = 7,148,244.20 : x - Step 2: Convert to fraction form
10,134,228.20/15,203,934.30 = 7,148,244.20/x - Step 3: Cross multiply
10,134,228.20x = 15,203,934.30 × 7,148,244.20 - Step 4: Simplify right side
10,134,228.20x = 108,681,435,177,156.06 - Step 5: Solve for x
x = 108,681,435,177,156.06/10,134,228.20 - Step 6: Final answer
x = 10,724,194.58
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1.5x scale
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.