Finding the Fourth Proportional to 68,790,258.81, 94,899,276.57 and 40,897,142.07
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Solution
The fourth proportional to 68,790,258.81, 94,899,276.57 and 40,897,142.07 is: 56,419,459.14
Step by Step Solution
- Step 1: Write the proportion equation
68,790,258.81 : 94,899,276.57 = 40,897,142.07 : x - Step 2: Convert to fraction form
68,790,258.81/94,899,276.57 = 40,897,142.07/x - Step 3: Cross multiply
68,790,258.81x = 94,899,276.57 × 40,897,142.07 - Step 4: Simplify right side
68,790,258.81x = 3,881,109,196,223,512 - Step 5: Solve for x
x = 3,881,109,196,223,512/68,790,258.81 - Step 6: Final answer
x = 56,419,459.14
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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.