Finding the Fourth Proportional to 18,746,169.70, 28,118,992.08 and 7,386,716.74
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Solution
The fourth proportional to 18,746,169.70, 28,118,992.08 and 7,386,716.74 is: 11,079,971.69
Step by Step Solution
- Step 1: Write the proportion equation
18,746,169.70 : 28,118,992.08 = 7,386,716.74 : x - Step 2: Convert to fraction form
18,746,169.70/28,118,992.08 = 7,386,716.74/x - Step 3: Cross multiply
18,746,169.70x = 28,118,992.08 × 7,386,716.74 - Step 4: Simplify right side
18,746,169.70x = 207,707,029,509,263.41 - Step 5: Solve for x
x = 207,707,029,509,263.41/18,746,169.70 - Step 6: Final answer
x = 11,079,971.69
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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.