Finding the Fourth Proportional to 39,153,438.88, 54,030,242.92 and 21,750,878.08
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Solution
The fourth proportional to 39,153,438.88, 54,030,242.92 and 21,750,878.08 is: 30,015,376.94
Step by Step Solution
- Step 1: Write the proportion equation
39,153,438.88 : 54,030,242.92 = 21,750,878.08 : x - Step 2: Convert to fraction form
39,153,438.88/54,030,242.92 = 21,750,878.08/x - Step 3: Cross multiply
39,153,438.88x = 54,030,242.92 × 21,750,878.08 - Step 4: Simplify right side
39,153,438.88x = 1,175,205,226,385,703.25 - Step 5: Solve for x
x = 1,175,205,226,385,703.25/39,153,438.88 - Step 6: Final answer
x = 30,015,376.94
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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.