Finding the Fourth Proportional to 22,453,841.74, 30,986,121.09 and 13,035,506.65
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Solution
The fourth proportional to 22,453,841.74, 30,986,121.09 and 13,035,506.65 is: 17,988,894.38
Step by Step Solution
- Step 1: Write the proportion equation
22,453,841.74 : 30,986,121.09 = 13,035,506.65 : x - Step 2: Convert to fraction form
22,453,841.74/30,986,121.09 = 13,035,506.65/x - Step 3: Cross multiply
22,453,841.74x = 30,986,121.09 × 13,035,506.65 - Step 4: Simplify right side
22,453,841.74x = 403,919,787,526,400.25 - Step 5: Solve for x
x = 403,919,787,526,400.25/22,453,841.74 - Step 6: Final answer
x = 17,988,894.38
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1.5x scale
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.