Finding the Fourth Proportional to 217,740,370.60, 326,610,555.90 and 125,907,365.80
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Solution
The fourth proportional to 217,740,370.60, 326,610,555.90 and 125,907,365.80 is: 188,861,048.70
Step by Step Solution
- Step 1: Write the proportion equation
217,740,370.60 : 326,610,555.90 = 125,907,365.80 : x - Step 2: Convert to fraction form
217,740,370.60/326,610,555.90 = 125,907,365.80/x - Step 3: Cross multiply
217,740,370.60x = 326,610,555.90 × 125,907,365.80 - Step 4: Simplify right side
217,740,370.60x = 41,122,674,735,842,648 - Step 5: Solve for x
x = 41,122,674,735,842,648/217,740,370.60 - Step 6: Final answer
x = 188,861,048.70
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1.5x scale
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.