Finding the Fourth Proportional to 157,414,376.09, 217,232,593.58 and 86,849,982.74
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Solution
The fourth proportional to 157,414,376.09, 217,232,593.58 and 86,849,982.74 is: 119,853,392.51
Step by Step Solution
- Step 1: Write the proportion equation
157,414,376.09 : 217,232,593.58 = 86,849,982.74 : x - Step 2: Convert to fraction form
157,414,376.09/217,232,593.58 = 86,849,982.74/x - Step 3: Cross multiply
157,414,376.09x = 217,232,593.58 × 86,849,982.74 - Step 4: Simplify right side
157,414,376.09x = 18,866,647,003,748,644 - Step 5: Solve for x
x = 18,866,647,003,748,644/157,414,376.09 - Step 6: Final answer
x = 119,853,392.51
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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.