Finding the Fourth Proportional to 384,952,775.20, 577,429,162.80 and 180,879,431.20
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Solution
The fourth proportional to 384,952,775.20, 577,429,162.80 and 180,879,431.20 is: 271,319,146.80
Step by Step Solution
- Step 1: Write the proportion equation
384,952,775.20 : 577,429,162.80 = 180,879,431.20 : x - Step 2: Convert to fraction form
384,952,775.20/577,429,162.80 = 180,879,431.20/x - Step 3: Cross multiply
384,952,775.20x = 577,429,162.80 × 180,879,431.20 - Step 4: Simplify right side
384,952,775.20x = 104,445,058,525,556,176 - Step 5: Solve for x
x = 104,445,058,525,556,176/384,952,775.20 - Step 6: Final answer
x = 271,319,146.80
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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.