Finding the Fourth Proportional to 122,382,001.20, 183,573,001.80 and 115,201,642.80
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Solution
The fourth proportional to 122,382,001.20, 183,573,001.80 and 115,201,642.80 is: 172,802,464.20
Step by Step Solution
- Step 1: Write the proportion equation
122,382,001.20 : 183,573,001.80 = 115,201,642.80 : x - Step 2: Convert to fraction form
122,382,001.20/183,573,001.80 = 115,201,642.80/x - Step 3: Cross multiply
122,382,001.20x = 183,573,001.80 × 115,201,642.80 - Step 4: Simplify right side
122,382,001.20x = 21,147,911,381,087,356 - Step 5: Solve for x
x = 21,147,911,381,087,356/122,382,001.20 - Step 6: Final answer
x = 172,802,464.20
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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.