Finding the Fourth Proportional to 185,988,361.57, 256,699,472.84 and 123,153,631.63
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Solution
The fourth proportional to 185,988,361.57, 256,699,472.84 and 123,153,631.63 is: 169,975,540.68
Step by Step Solution
- Step 1: Write the proportion equation
185,988,361.57 : 256,699,472.84 = 123,153,631.63 : x - Step 2: Convert to fraction form
185,988,361.57/256,699,472.84 = 123,153,631.63/x - Step 3: Cross multiply
185,988,361.57x = 256,699,472.84 × 123,153,631.63 - Step 4: Simplify right side
185,988,361.57x = 31,613,472,317,752,548 - Step 5: Solve for x
x = 31,613,472,317,752,548/185,988,361.57 - Step 6: Final answer
x = 169,975,540.68
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1.5x scale
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.