Finding the Fourth Proportional to 18,604,068.68, 27,909,828.06 and 10,418,351.82
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Solution
The fourth proportional to 18,604,068.68, 27,909,828.06 and 10,418,351.82 is: 15,629,613.77
Step by Step Solution
- Step 1: Write the proportion equation
18,604,068.68 : 27,909,828.06 = 10,418,351.82 : x - Step 2: Convert to fraction form
18,604,068.68/27,909,828.06 = 10,418,351.82/x - Step 3: Cross multiply
18,604,068.68x = 27,909,828.06 × 10,418,351.82 - Step 4: Simplify right side
18,604,068.68x = 290,774,407,964,788.06 - Step 5: Solve for x
x = 290,774,407,964,788.06/18,604,068.68 - Step 6: Final answer
x = 15,629,613.77
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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.