Finding the Fourth Proportional to 127,712,440.20, 191,568,660.30 and 76,652,113.80
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Solution
The fourth proportional to 127,712,440.20, 191,568,660.30 and 76,652,113.80 is: 114,978,170.70
Step by Step Solution
- Step 1: Write the proportion equation
127,712,440.20 : 191,568,660.30 = 76,652,113.80 : x - Step 2: Convert to fraction form
127,712,440.20/191,568,660.30 = 76,652,113.80/x - Step 3: Cross multiply
127,712,440.20x = 191,568,660.30 × 76,652,113.80 - Step 4: Simplify right side
127,712,440.20x = 14,684,142,749,829,142 - Step 5: Solve for x
x = 14,684,142,749,829,142/127,712,440.20 - Step 6: Final answer
x = 114,978,170.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.