Finding the Fourth Proportional to 487,158,749.80, 730,738,124.70 and 472,809,842.80
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Solution
The fourth proportional to 487,158,749.80, 730,738,124.70 and 472,809,842.80 is: 709,214,764.20
Step by Step Solution
- Step 1: Write the proportion equation
487,158,749.80 : 730,738,124.70 = 472,809,842.80 : x - Step 2: Convert to fraction form
487,158,749.80/730,738,124.70 = 472,809,842.80/x - Step 3: Cross multiply
487,158,749.80x = 730,738,124.70 × 472,809,842.80 - Step 4: Simplify right side
487,158,749.80x = 345,500,177,867,373,824 - Step 5: Solve for x
x = 345,500,177,867,373,824/487,158,749.80 - Step 6: Final answer
x = 709,214,764.20
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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.