Finding the Fourth Proportional to 115,925,287.20, 173,887,930.80 and 70,575,655.20
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Solution
The fourth proportional to 115,925,287.20, 173,887,930.80 and 70,575,655.20 is: 105,863,482.80
Step by Step Solution
- Step 1: Write the proportion equation
115,925,287.20 : 173,887,930.80 = 70,575,655.20 : x - Step 2: Convert to fraction form
115,925,287.20/173,887,930.80 = 70,575,655.20/x - Step 3: Cross multiply
115,925,287.20x = 173,887,930.80 × 70,575,655.20 - Step 4: Simplify right side
115,925,287.20x = 12,272,254,647,582,262 - Step 5: Solve for x
x = 12,272,254,647,582,262/115,925,287.20 - Step 6: Final answer
x = 105,863,482.80
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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.