Finding the Fourth Proportional to 7,077,792.26, 9,767,260.14 and 3,980,314.68
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Solution
The fourth proportional to 7,077,792.26, 9,767,260.14 and 3,980,314.68 is: 5,492,781.86
Step by Step Solution
- Step 1: Write the proportion equation
7,077,792.26 : 9,767,260.14 = 3,980,314.68 : x - Step 2: Convert to fraction form
7,077,792.26/9,767,260.14 = 3,980,314.68/x - Step 3: Cross multiply
7,077,792.26x = 9,767,260.14 × 3,980,314.68 - Step 4: Simplify right side
7,077,792.26x = 38,876,768,918,620.86 - Step 5: Solve for x
x = 38,876,768,918,620.86/7,077,792.26 - Step 6: Final answer
x = 5,492,781.86
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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.