Finding the Fourth Proportional to 13,694,651.19, 18,898,387.70 and 7,582,948.47
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Solution
The fourth proportional to 13,694,651.19, 18,898,387.70 and 7,582,948.47 is: 10,464,341.01
Step by Step Solution
- Step 1: Write the proportion equation
13,694,651.19 : 18,898,387.70 = 7,582,948.47 : x - Step 2: Convert to fraction form
13,694,651.19/18,898,387.70 = 7,582,948.47/x - Step 3: Cross multiply
13,694,651.19x = 18,898,387.70 × 7,582,948.47 - Step 4: Simplify right side
13,694,651.19x = 143,305,500,057,267.06 - Step 5: Solve for x
x = 143,305,500,057,267.06/13,694,651.19 - Step 6: Final answer
x = 10,464,341.01
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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.