Finding the Fourth Proportional to 19,501,474.39, 26,911,519.57 and 11,128,694.09
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Solution
The fourth proportional to 19,501,474.39, 26,911,519.57 and 11,128,694.09 is: 15,357,303.90
Step by Step Solution
- Step 1: Write the proportion equation
19,501,474.39 : 26,911,519.57 = 11,128,694.09 : x - Step 2: Convert to fraction form
19,501,474.39/26,911,519.57 = 11,128,694.09/x - Step 3: Cross multiply
19,501,474.39x = 26,911,519.57 × 11,128,694.09 - Step 4: Simplify right side
19,501,474.39x = 299,490,068,620,073.50 - Step 5: Solve for x
x = 299,490,068,620,073.50/19,501,474.39 - Step 6: Final answer
x = 15,357,303.90
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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.