Finding the Fourth Proportional to 19,639,669.52, 27,103,584.83 and 10,937,842.09
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Solution
The fourth proportional to 19,639,669.52, 27,103,584.83 and 10,937,842.09 is: 15,094,690.39
Step by Step Solution
- Step 1: Write the proportion equation
19,639,669.52 : 27,103,584.83 = 10,937,842.09 : x - Step 2: Convert to fraction form
19,639,669.52/27,103,584.83 = 10,937,842.09/x - Step 3: Cross multiply
19,639,669.52x = 27,103,584.83 × 10,937,842.09 - Step 4: Simplify right side
19,639,669.52x = 296,454,730,821,011.31 - Step 5: Solve for x
x = 296,454,730,821,011.31/19,639,669.52 - Step 6: Final answer
x = 15,094,690.39
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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.