Finding the Fourth Proportional to 264,687,518.90, 397,031,278.35 and 80,454,638.90
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Solution
The fourth proportional to 264,687,518.90, 397,031,278.35 and 80,454,638.90 is: 120,681,958.35
Step by Step Solution
- Step 1: Write the proportion equation
264,687,518.90 : 397,031,278.35 = 80,454,638.90 : x - Step 2: Convert to fraction form
264,687,518.90/397,031,278.35 = 80,454,638.90/x - Step 3: Cross multiply
264,687,518.90x = 397,031,278.35 × 80,454,638.90 - Step 4: Simplify right side
264,687,518.90x = 31,943,008,131,654,644 - Step 5: Solve for x
x = 31,943,008,131,654,644/264,687,518.90 - Step 6: Final answer
x = 120,681,958.35
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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.