Finding the Fourth Proportional to 268,187,976.81, 370,066,203.14 and 155,176,895.07
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Solution
The fourth proportional to 268,187,976.81, 370,066,203.14 and 155,176,895.07 is: 214,124,902.45
Step by Step Solution
- Step 1: Write the proportion equation
268,187,976.81 : 370,066,203.14 = 155,176,895.07 : x - Step 2: Convert to fraction form
268,187,976.81/370,066,203.14 = 155,176,895.07/x - Step 3: Cross multiply
268,187,976.81x = 370,066,203.14 × 155,176,895.07 - Step 4: Simplify right side
268,187,976.81x = 57,425,724,372,833,192 - Step 5: Solve for x
x = 57,425,724,372,833,192/268,187,976.81 - Step 6: Final answer
x = 214,124,902.45
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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.