Finding the Fourth Proportional to 68,628,220.16, 102,910,937.76 and 40,974,690.56
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Solution
The fourth proportional to 68,628,220.16, 102,910,937.76 and 40,974,690.56 is: 61,443,292.86
Step by Step Solution
- Step 1: Write the proportion equation
68,628,220.16 : 102,910,937.76 = 40,974,690.56 : x - Step 2: Convert to fraction form
68,628,220.16/102,910,937.76 = 40,974,690.56/x - Step 3: Cross multiply
68,628,220.16x = 102,910,937.76 × 40,974,690.56 - Step 4: Simplify right side
68,628,220.16x = 4,216,743,829,955,420 - Step 5: Solve for x
x = 4,216,743,829,955,420/68,628,220.16 - Step 6: Final answer
x = 61,443,292.86
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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.