Finding the Fourth Proportional to 22,506,685.40, 31,059,258.35 and 12,193,408.19
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Solution
The fourth proportional to 22,506,685.40, 31,059,258.35 and 12,193,408.19 is: 16,826,920.90
Step by Step Solution
- Step 1: Write the proportion equation
22,506,685.40 : 31,059,258.35 = 12,193,408.19 : x - Step 2: Convert to fraction form
22,506,685.40/31,059,258.35 = 12,193,408.19/x - Step 3: Cross multiply
22,506,685.40x = 31,059,258.35 × 12,193,408.19 - Step 4: Simplify right side
22,506,685.40x = 378,718,214,923,952.56 - Step 5: Solve for x
x = 378,718,214,923,952.56/22,506,685.40 - Step 6: Final answer
x = 16,826,920.90
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1.5x scale
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.