Finding the Fourth Proportional to 1,638,440,277.62, 2,457,662,781.63 and 669,091,893.62
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Solution
The fourth proportional to 1,638,440,277.62, 2,457,662,781.63 and 669,091,893.62 is: 1,003,638,806.31
Step by Step Solution
- Step 1: Write the proportion equation
1,638,440,277.62 : 2,457,662,781.63 = 669,091,893.62 : x - Step 2: Convert to fraction form
1,638,440,277.62/2,457,662,781.63 = 669,091,893.62/x - Step 3: Cross multiply
1,638,440,277.62x = 2,457,662,781.63 × 669,091,893.62 - Step 4: Simplify right side
1,638,440,277.62x = 1,644,402,244,440,213,248 - Step 5: Solve for x
x = 1,644,402,244,440,213,248/1,638,440,277.62 - Step 6: Final answer
x = 1,003,638,806.31
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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.