Finding the Fourth Proportional to 73,821,440.20, 110,698,982.70 and 28,368,128.20
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Solution
The fourth proportional to 73,821,440.20, 110,698,982.70 and 28,368,128.20 is: 42,539,442.80
Step by Step Solution
- Step 1: Write the proportion equation
73,821,440.20 : 110,698,982.70 = 28,368,128.20 : x - Step 2: Convert to fraction form
73,821,440.20/110,698,982.70 = 28,368,128.20/x - Step 3: Cross multiply
73,821,440.20x = 110,698,982.70 × 28,368,128.20 - Step 4: Simplify right side
73,821,440.20x = 3,140,322,932,843,182 - Step 5: Solve for x
x = 3,140,322,932,843,182/73,821,440.20 - Step 6: Final answer
x = 42,539,442.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.