Finding the Fourth Proportional to 259,977,675.12, 389,887,992.36 and 78,176,592.24
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Solution
The fourth proportional to 259,977,675.12, 389,887,992.36 and 78,176,592.24 is: 117,241,276.91
Step by Step Solution
- Step 1: Write the proportion equation
259,977,675.12 : 389,887,992.36 = 78,176,592.24 : x - Step 2: Convert to fraction form
259,977,675.12/389,887,992.36 = 78,176,592.24/x - Step 3: Cross multiply
259,977,675.12x = 389,887,992.36 × 78,176,592.24 - Step 4: Simplify right side
259,977,675.12x = 30,480,114,597,999,956 - Step 5: Solve for x
x = 30,480,114,597,999,956/259,977,675.12 - Step 6: Final answer
x = 117,241,276.91
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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.