Finding the Fourth Proportional to 217,261,905.94, 299,812,303.63 and 123,182,381.94
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Solution
The fourth proportional to 217,261,905.94, 299,812,303.63 and 123,182,381.94 is: 169,986,512.53
Step by Step Solution
- Step 1: Write the proportion equation
217,261,905.94 : 299,812,303.63 = 123,182,381.94 : x - Step 2: Convert to fraction form
217,261,905.94/299,812,303.63 = 123,182,381.94/x - Step 3: Cross multiply
217,261,905.94x = 299,812,303.63 × 123,182,381.94 - Step 4: Simplify right side
217,261,905.94x = 36,931,593,696,061,904 - Step 5: Solve for x
x = 36,931,593,696,061,904/217,261,905.94 - Step 6: Final answer
x = 169,986,512.53
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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.