Finding the Fourth Proportional to 1,077,895,145.64, 1,487,212,579.62 and 631,618,899.96
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Solution
The fourth proportional to 1,077,895,145.64, 1,487,212,579.62 and 631,618,899.96 is: 871,468,414.48
Step by Step Solution
- Step 1: Write the proportion equation
1,077,895,145.64 : 1,487,212,579.62 = 631,618,899.96 : x - Step 2: Convert to fraction form
1,077,895,145.64/1,487,212,579.62 = 631,618,899.96/x - Step 3: Cross multiply
1,077,895,145.64x = 1,487,212,579.62 × 631,618,899.96 - Step 4: Simplify right side
1,077,895,145.64x = 939,351,573,546,258,304 - Step 5: Solve for x
x = 939,351,573,546,258,304/1,077,895,145.64 - Step 6: Final answer
x = 871,468,414.48
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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.