Finding the Fourth Proportional to 233,958,570.21, 322,872,913.35 and 129,536,638.56
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Solution
The fourth proportional to 233,958,570.21, 322,872,913.35 and 129,536,638.56 is: 178,766,145.82
Step by Step Solution
- Step 1: Write the proportion equation
233,958,570.21 : 322,872,913.35 = 129,536,638.56 : x - Step 2: Convert to fraction form
233,958,570.21/322,872,913.35 = 129,536,638.56/x - Step 3: Cross multiply
233,958,570.21x = 322,872,913.35 × 129,536,638.56 - Step 4: Simplify right side
233,958,570.21x = 41,823,871,877,433,152 - Step 5: Solve for x
x = 41,823,871,877,433,152/233,958,570.21 - Step 6: Final answer
x = 178,766,145.82
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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.