Finding the Fourth Proportional to 384,939,703.20, 577,409,554.80 and 126,092,506.80
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Solution
The fourth proportional to 384,939,703.20, 577,409,554.80 and 126,092,506.80 is: 189,138,760.20
Step by Step Solution
- Step 1: Write the proportion equation
384,939,703.20 : 577,409,554.80 = 126,092,506.80 : x - Step 2: Convert to fraction form
384,939,703.20/577,409,554.80 = 126,092,506.80/x - Step 3: Cross multiply
384,939,703.20x = 577,409,554.80 × 126,092,506.80 - Step 4: Simplify right side
384,939,703.20x = 72,807,018,215,003,968 - Step 5: Solve for x
x = 72,807,018,215,003,968/384,939,703.20 - Step 6: Final answer
x = 189,138,760.20
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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.