Finding the Fourth Proportional to 217,872,023.60, 326,808,035.40 and 201,243,825.20
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Solution
The fourth proportional to 217,872,023.60, 326,808,035.40 and 201,243,825.20 is: 301,865,737.80
Step by Step Solution
- Step 1: Write the proportion equation
217,872,023.60 : 326,808,035.40 = 201,243,825.20 : x - Step 2: Convert to fraction form
217,872,023.60/326,808,035.40 = 201,243,825.20/x - Step 3: Cross multiply
217,872,023.60x = 326,808,035.40 × 201,243,825.20 - Step 4: Simplify right side
217,872,023.60x = 65,768,099,149,993,000 - Step 5: Solve for x
x = 65,768,099,149,993,000/217,872,023.60 - Step 6: Final answer
x = 301,865,737.80
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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.