Finding the Fourth Proportional to 104,913,612.30, 157,370,418.45 and 66,649,860.30
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Solution
The fourth proportional to 104,913,612.30, 157,370,418.45 and 66,649,860.30 is: 99,974,790.45
Step by Step Solution
- Step 1: Write the proportion equation
104,913,612.30 : 157,370,418.45 = 66,649,860.30 : x - Step 2: Convert to fraction form
104,913,612.30/157,370,418.45 = 66,649,860.30/x - Step 3: Cross multiply
104,913,612.30x = 157,370,418.45 × 66,649,860.30 - Step 4: Simplify right side
104,913,612.30x = 10,488,716,405,045,042 - Step 5: Solve for x
x = 10,488,716,405,045,042/104,913,612.30 - Step 6: Final answer
x = 99,974,790.45
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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.