Finding the Fourth Proportional to 498,203,615.80, 747,305,423.70 and 129,737,855.80
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Solution
The fourth proportional to 498,203,615.80, 747,305,423.70 and 129,737,855.80 is: 194,606,783.70
Step by Step Solution
- Step 1: Write the proportion equation
498,203,615.80 : 747,305,423.70 = 129,737,855.80 : x - Step 2: Convert to fraction form
498,203,615.80/747,305,423.70 = 129,737,855.80/x - Step 3: Cross multiply
498,203,615.80x = 747,305,423.70 × 129,737,855.80 - Step 4: Simplify right side
498,203,615.80x = 96,953,803,298,548,512 - Step 5: Solve for x
x = 96,953,803,298,548,512/498,203,615.80 - Step 6: Final answer
x = 194,606,783.70
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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.