Finding the Fourth Proportional to 80,497,869.57, 120,759,509.12 and 34,440,037.08
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Solution
The fourth proportional to 80,497,869.57, 120,759,509.12 and 34,440,037.08 is: 51,665,491.20
Step by Step Solution
- Step 1: Write the proportion equation
80,497,869.57 : 120,759,509.12 = 34,440,037.08 : x - Step 2: Convert to fraction form
80,497,869.57/120,759,509.12 = 34,440,037.08/x - Step 3: Cross multiply
80,497,869.57x = 120,759,509.12 × 34,440,037.08 - Step 4: Simplify right side
80,497,869.57x = 4,158,961,971,860,942.50 - Step 5: Solve for x
x = 4,158,961,971,860,942.50/80,497,869.57 - Step 6: Final answer
x = 51,665,491.20
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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.