Finding the Fourth Proportional to 97,114,213.80, 145,671,320.70 and 85,170,277.80
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Solution
The fourth proportional to 97,114,213.80, 145,671,320.70 and 85,170,277.80 is: 127,755,416.70
Step by Step Solution
- Step 1: Write the proportion equation
97,114,213.80 : 145,671,320.70 = 85,170,277.80 : x - Step 2: Convert to fraction form
97,114,213.80/145,671,320.70 = 85,170,277.80/x - Step 3: Cross multiply
97,114,213.80x = 145,671,320.70 × 85,170,277.80 - Step 4: Simplify right side
97,114,213.80x = 12,406,866,851,511,890 - Step 5: Solve for x
x = 12,406,866,851,511,890/97,114,213.80 - Step 6: Final answer
x = 127,755,416.70
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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.