Finding the Fourth Proportional to 19,639,221.98, 27,102,967.15 and 10,937,394.59
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Solution
The fourth proportional to 19,639,221.98, 27,102,967.15 and 10,937,394.59 is: 15,094,072.80
Step by Step Solution
- Step 1: Write the proportion equation
19,639,221.98 : 27,102,967.15 = 10,937,394.59 : x - Step 2: Convert to fraction form
19,639,221.98/27,102,967.15 = 10,937,394.59/x - Step 3: Cross multiply
19,639,221.98x = 27,102,967.15 × 10,937,394.59 - Step 4: Simplify right side
19,639,221.98x = 296,435,846,338,621.31 - Step 5: Solve for x
x = 296,435,846,338,621.31/19,639,221.98 - Step 6: Final answer
x = 15,094,072.80
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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.