Finding the Fourth Proportional to 819,153,005.20, 1,228,729,507.80 and 273,894,539.20
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Solution
The fourth proportional to 819,153,005.20, 1,228,729,507.80 and 273,894,539.20 is: 410,841,808.80
Step by Step Solution
- Step 1: Write the proportion equation
819,153,005.20 : 1,228,729,507.80 = 273,894,539.20 : x - Step 2: Convert to fraction form
819,153,005.20/1,228,729,507.80 = 273,894,539.20/x - Step 3: Cross multiply
819,153,005.20x = 1,228,729,507.80 × 273,894,539.20 - Step 4: Simplify right side
819,153,005.20x = 336,542,302,340,323,776 - Step 5: Solve for x
x = 336,542,302,340,323,776/819,153,005.20 - Step 6: Final answer
x = 410,841,808.80
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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.