Finding the Fourth Proportional to 402,763,890.80, 555,656,793.12 and 226,511,483.12
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Solution
The fourth proportional to 402,763,890.80, 555,656,793.12 and 226,511,483.12 is: 312,497,339.48
Step by Step Solution
- Step 1: Write the proportion equation
402,763,890.80 : 555,656,793.12 = 226,511,483.12 : x - Step 2: Convert to fraction form
402,763,890.80/555,656,793.12 = 226,511,483.12/x - Step 3: Cross multiply
402,763,890.80x = 555,656,793.12 × 226,511,483.12 - Step 4: Simplify right side
402,763,890.80x = 125,862,644,315,314,208 - Step 5: Solve for x
x = 125,862,644,315,314,208/402,763,890.80 - Step 6: Final answer
x = 312,497,339.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.