Finding the Fourth Proportional to 77,766,372.85, 116,649,559.28 and 48,918,968.05
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Solution
The fourth proportional to 77,766,372.85, 116,649,559.28 and 48,918,968.05 is: 73,378,452.08
Step by Step Solution
- Step 1: Write the proportion equation
77,766,372.85 : 116,649,559.28 = 48,918,968.05 : x - Step 2: Convert to fraction form
77,766,372.85/116,649,559.28 = 48,918,968.05/x - Step 3: Cross multiply
77,766,372.85x = 116,649,559.28 × 48,918,968.05 - Step 4: Simplify right side
77,766,372.85x = 5,706,376,063,220,306 - Step 5: Solve for x
x = 5,706,376,063,220,306/77,766,372.85 - Step 6: Final answer
x = 73,378,452.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.