Finding the Fourth Proportional to 73,753,428.90, 110,630,143.35 and 66,447,099.30
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Solution
The fourth proportional to 73,753,428.90, 110,630,143.35 and 66,447,099.30 is: 99,670,648.95
Step by Step Solution
- Step 1: Write the proportion equation
73,753,428.90 : 110,630,143.35 = 66,447,099.30 : x - Step 2: Convert to fraction form
73,753,428.90/110,630,143.35 = 66,447,099.30/x - Step 3: Cross multiply
73,753,428.90x = 110,630,143.35 × 66,447,099.30 - Step 4: Simplify right side
73,753,428.90x = 7,351,052,120,750,684 - Step 5: Solve for x
x = 7,351,052,120,750,684/73,753,428.90 - Step 6: Final answer
x = 99,670,648.95
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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.