Finding the Fourth Proportional to 1,248,271,512.31, 1,872,494,638.36 and 501,287,170.70
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Solution
The fourth proportional to 1,248,271,512.31, 1,872,494,638.36 and 501,287,170.70 is: 751,965,842.50
Step by Step Solution
- Step 1: Write the proportion equation
1,248,271,512.31 : 1,872,494,638.36 = 501,287,170.70 : x - Step 2: Convert to fraction form
1,248,271,512.31/1,872,494,638.36 = 501,287,170.70/x - Step 3: Cross multiply
1,248,271,512.31x = 1,872,494,638.36 × 501,287,170.70 - Step 4: Simplify right side
1,248,271,512.31x = 938,657,539,417,832,064 - Step 5: Solve for x
x = 938,657,539,417,832,064/1,248,271,512.31 - Step 6: Final answer
x = 751,965,842.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.