Finding the Fourth Proportional to 51,684,169.85, 71,325,675.80 and 28,480,791.49
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Solution
The fourth proportional to 51,684,169.85, 71,325,675.80 and 28,480,791.49 is: 39,304,330.63
Step by Step Solution
- Step 1: Write the proportion equation
51,684,169.85 : 71,325,675.80 = 28,480,791.49 : x - Step 2: Convert to fraction form
51,684,169.85/71,325,675.80 = 28,480,791.49/x - Step 3: Cross multiply
51,684,169.85x = 71,325,675.80 × 28,480,791.49 - Step 4: Simplify right side
51,684,169.85x = 2,031,411,700,129,223.75 - Step 5: Solve for x
x = 2,031,411,700,129,223.75/51,684,169.85 - Step 6: Final answer
x = 39,304,330.63
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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.