Finding the Fourth Proportional to 256,126,457.40, 353,454,104.52 and 138,651,756.36
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Solution
The fourth proportional to 256,126,457.40, 353,454,104.52 and 138,651,756.36 is: 191,339,203.62
Step by Step Solution
- Step 1: Write the proportion equation
256,126,457.40 : 353,454,104.52 = 138,651,756.36 : x - Step 2: Convert to fraction form
256,126,457.40/353,454,104.52 = 138,651,756.36/x - Step 3: Cross multiply
256,126,457.40x = 353,454,104.52 × 138,651,756.36 - Step 4: Simplify right side
256,126,457.40x = 49,007,032,384,349,016 - Step 5: Solve for x
x = 49,007,032,384,349,016/256,126,457.40 - Step 6: Final answer
x = 191,339,203.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.