Finding the Fourth Proportional to 80,943,691.40, 121,373,546.70 and 29,799,384.20
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Solution
The fourth proportional to 80,943,691.40, 121,373,546.70 and 29,799,384.20 is: 44,683,617.55
Step by Step Solution
- Step 1: Write the proportion equation
80,943,691.40 : 121,373,546.70 = 29,799,384.20 : x - Step 2: Convert to fraction form
80,943,691.40/121,373,546.70 = 29,799,384.20/x - Step 3: Cross multiply
80,943,691.40x = 121,373,546.70 × 29,799,384.20 - Step 4: Simplify right side
80,943,691.40x = 3,616,856,949,829,942 - Step 5: Solve for x
x = 3,616,856,949,829,942/80,943,691.40 - Step 6: Final answer
x = 44,683,617.55
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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.