Finding the Fourth Proportional to 681,258,203.71, 940,136,732.98 and 367,992,556.08
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Solution
The fourth proportional to 681,258,203.71, 940,136,732.98 and 367,992,556.08 is: 507,829,949.86
Step by Step Solution
- Step 1: Write the proportion equation
681,258,203.71 : 940,136,732.98 = 367,992,556.08 : x - Step 2: Convert to fraction form
681,258,203.71/940,136,732.98 = 367,992,556.08/x - Step 3: Cross multiply
681,258,203.71x = 940,136,732.98 × 367,992,556.08 - Step 4: Simplify right side
681,258,203.71x = 345,963,319,431,642,624 - Step 5: Solve for x
x = 345,963,319,431,642,624/681,258,203.71 - Step 6: Final answer
x = 507,829,949.86
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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.