Finding the Fourth Proportional to 156,449,638.70, 234,673,291.65 and 47,274,598.70
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Solution
The fourth proportional to 156,449,638.70, 234,673,291.65 and 47,274,598.70 is: 70,911,545.60
Step by Step Solution
- Step 1: Write the proportion equation
156,449,638.70 : 234,673,291.65 = 47,274,598.70 : x - Step 2: Convert to fraction form
156,449,638.70/234,673,291.65 = 47,274,598.70/x - Step 3: Cross multiply
156,449,638.70x = 234,673,291.65 × 47,274,598.70 - Step 4: Simplify right side
156,449,638.70x = 11,094,085,688,361,812 - Step 5: Solve for x
x = 11,094,085,688,361,812/156,449,638.70 - Step 6: Final answer
x = 70,911,545.60
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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.