Finding the Fourth Proportional to 681,258,297.18, 940,136,862.08 and 367,992,649.55
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Solution
The fourth proportional to 681,258,297.18, 940,136,862.08 and 367,992,649.55 is: 507,830,078.91
Step by Step Solution
- Step 1: Write the proportion equation
681,258,297.18 : 940,136,862.08 = 367,992,649.55 : x - Step 2: Convert to fraction form
681,258,297.18/940,136,862.08 = 367,992,649.55/x - Step 3: Cross multiply
681,258,297.18x = 940,136,862.08 × 367,992,649.55 - Step 4: Simplify right side
681,258,297.18x = 345,963,454,812,357,056 - Step 5: Solve for x
x = 345,963,454,812,357,056/681,258,297.18 - Step 6: Final answer
x = 507,830,078.91
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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.