Finding the Fourth Proportional to 15,202,432.60, 22,771,853.70 and 7,122,304.60
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Solution
The fourth proportional to 15,202,432.60, 22,771,853.70 and 7,122,304.60 is: 10,668,560.92
Step by Step Solution
- Step 1: Write the proportion equation
15,202,432.60 : 22,771,853.70 = 7,122,304.60 : x - Step 2: Convert to fraction form
15,202,432.60/22,771,853.70 = 7,122,304.60/x - Step 3: Cross multiply
15,202,432.60x = 22,771,853.70 × 7,122,304.60 - Step 4: Simplify right side
15,202,432.60x = 162,188,078,358,037 - Step 5: Solve for x
x = 162,188,078,358,037/15,202,432.60 - Step 6: Final answer
x = 10,668,560.92
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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.