Finding the Fourth Proportional to 498,327,749.20, 747,491,623.80 and 239,480,552.80
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Solution
The fourth proportional to 498,327,749.20, 747,491,623.80 and 239,480,552.80 is: 359,220,829.20
Step by Step Solution
- Step 1: Write the proportion equation
498,327,749.20 : 747,491,623.80 = 239,480,552.80 : x - Step 2: Convert to fraction form
498,327,749.20/747,491,623.80 = 239,480,552.80/x - Step 3: Cross multiply
498,327,749.20x = 747,491,623.80 × 239,480,552.80 - Step 4: Simplify right side
498,327,749.20x = 179,009,707,280,993,632 - Step 5: Solve for x
x = 179,009,707,280,993,632/498,327,749.20 - Step 6: Final answer
x = 359,220,829.20
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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.