Finding the Fourth Proportional to 72,701,323.14, 100,326,211.28 and 40,106,266.50
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Solution
The fourth proportional to 72,701,323.14, 100,326,211.28 and 40,106,266.50 is: 55,345,757.03
Step by Step Solution
- Step 1: Write the proportion equation
72,701,323.14 : 100,326,211.28 = 40,106,266.50 : x - Step 2: Convert to fraction form
72,701,323.14/100,326,211.28 = 40,106,266.50/x - Step 3: Cross multiply
72,701,323.14x = 100,326,211.28 × 40,106,266.50 - Step 4: Simplify right side
72,701,323.14x = 4,023,709,766,530,986 - Step 5: Solve for x
x = 4,023,709,766,530,986/72,701,323.14 - Step 6: Final answer
x = 55,345,757.03
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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.