Finding the Fourth Proportional to 579,685,293.12, 799,969,183.24 and 315,369,177.80
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Solution
The fourth proportional to 579,685,293.12, 799,969,183.24 and 315,369,177.80 is: 435,211,357.92
Step by Step Solution
- Step 1: Write the proportion equation
579,685,293.12 : 799,969,183.24 = 315,369,177.80 : x - Step 2: Convert to fraction form
579,685,293.12/799,969,183.24 = 315,369,177.80/x - Step 3: Cross multiply
579,685,293.12x = 799,969,183.24 × 315,369,177.80 - Step 4: Simplify right side
579,685,293.12x = 252,285,623,583,736,352 - Step 5: Solve for x
x = 252,285,623,583,736,352/579,685,293.12 - Step 6: Final answer
x = 435,211,357.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.