Finding the Fourth Proportional to 384,912,089.40, 577,368,134.10 and 126,135,751.80
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Solution
The fourth proportional to 384,912,089.40, 577,368,134.10 and 126,135,751.80 is: 189,203,627.70
Step by Step Solution
- Step 1: Write the proportion equation
384,912,089.40 : 577,368,134.10 = 126,135,751.80 : x - Step 2: Convert to fraction form
384,912,089.40/577,368,134.10 = 126,135,751.80/x - Step 3: Cross multiply
384,912,089.40x = 577,368,134.10 × 126,135,751.80 - Step 4: Simplify right side
384,912,089.40x = 72,826,763,660,066,720 - Step 5: Solve for x
x = 72,826,763,660,066,720/384,912,089.40 - Step 6: Final answer
x = 189,203,627.70
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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.