Finding the Fourth Proportional to 65,403,785.76, 90,259,270.56 and 37,531,599.84
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Solution
The fourth proportional to 65,403,785.76, 90,259,270.56 and 37,531,599.84 is: 51,794,781.99
Step by Step Solution
- Step 1: Write the proportion equation
65,403,785.76 : 90,259,270.56 = 37,531,599.84 : x - Step 2: Convert to fraction form
65,403,785.76/90,259,270.56 = 37,531,599.84/x - Step 3: Cross multiply
65,403,785.76x = 90,259,270.56 × 37,531,599.84 - Step 4: Simplify right side
65,403,785.76x = 3,387,574,824,508,213 - Step 5: Solve for x
x = 3,387,574,824,508,213/65,403,785.76 - Step 6: Final answer
x = 51,794,781.99
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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.