Finding the Fourth Proportional to 12,371,470.74, 17,072,722.62 and 6,864,867.18
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Solution
The fourth proportional to 12,371,470.74, 17,072,722.62 and 6,864,867.18 is: 9,473,568.31
Step by Step Solution
- Step 1: Write the proportion equation
12,371,470.74 : 17,072,722.62 = 6,864,867.18 : x - Step 2: Convert to fraction form
12,371,470.74/17,072,722.62 = 6,864,867.18/x - Step 3: Cross multiply
12,371,470.74x = 17,072,722.62 × 6,864,867.18 - Step 4: Simplify right side
12,371,470.74x = 117,201,973,187,281.61 - Step 5: Solve for x
x = 117,201,973,187,281.61/12,371,470.74 - Step 6: Final answer
x = 9,473,568.31
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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.