Finding the Fourth Proportional to 118,829,336.52, 178,118,202.60 and 39,970,771.75
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Solution
The fourth proportional to 118,829,336.52, 178,118,202.60 and 39,970,771.75 is: 59,913,841.39
Step by Step Solution
- Step 1: Write the proportion equation
118,829,336.52 : 178,118,202.60 = 39,970,771.75 : x - Step 2: Convert to fraction form
118,829,336.52/178,118,202.60 = 39,970,771.75/x - Step 3: Cross multiply
118,829,336.52x = 178,118,202.60 × 39,970,771.75 - Step 4: Simplify right side
118,829,336.52x = 7,119,522,020,644,856 - Step 5: Solve for x
x = 7,119,522,020,644,856/118,829,336.52 - Step 6: Final answer
x = 59,913,841.39
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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.