Finding the Fourth Proportional to 65,921,135.20, 98,811,718.80 and 31,820,264.80
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Solution
The fourth proportional to 65,921,135.20, 98,811,718.80 and 31,820,264.80 is: 47,696,615.78
Step by Step Solution
- Step 1: Write the proportion equation
65,921,135.20 : 98,811,718.80 = 31,820,264.80 : x - Step 2: Convert to fraction form
65,921,135.20/98,811,718.80 = 31,820,264.80/x - Step 3: Cross multiply
65,921,135.20x = 98,811,718.80 × 31,820,264.80 - Step 4: Simplify right side
65,921,135.20x = 3,144,215,057,559,138 - Step 5: Solve for x
x = 3,144,215,057,559,138/65,921,135.20 - Step 6: Final answer
x = 47,696,615.78
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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.