Finding the Fourth Proportional to 211,652,739.45, 292,070,909.70 and 117,572,984.19
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Solution
The fourth proportional to 211,652,739.45, 292,070,909.70 and 117,572,984.19 is: 162,245,234.99
Step by Step Solution
- Step 1: Write the proportion equation
211,652,739.45 : 292,070,909.70 = 117,572,984.19 : x - Step 2: Convert to fraction form
211,652,739.45/292,070,909.70 = 117,572,984.19/x - Step 3: Cross multiply
211,652,739.45x = 292,070,909.70 × 117,572,984.19 - Step 4: Simplify right side
211,652,739.45x = 34,339,648,448,517,016 - Step 5: Solve for x
x = 34,339,648,448,517,016/211,652,739.45 - Step 6: Final answer
x = 162,245,234.99
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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.