Finding the Fourth Proportional to 1,766,892,218.65, 2,438,420,351.93 and 973,936,409.29
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Solution
The fourth proportional to 1,766,892,218.65, 2,438,420,351.93 and 973,936,409.29 is: 1,344,092,376.90
Step by Step Solution
- Step 1: Write the proportion equation
1,766,892,218.65 : 2,438,420,351.93 = 973,936,409.29 : x - Step 2: Convert to fraction form
1,766,892,218.65/2,438,420,351.93 = 973,936,409.29/x - Step 3: Cross multiply
1,766,892,218.65x = 2,438,420,351.93 × 973,936,409.29 - Step 4: Simplify right side
1,766,892,218.65x = 2,374,866,361,891,097,600 - Step 5: Solve for x
x = 2,374,866,361,891,097,600/1,766,892,218.65 - Step 6: Final answer
x = 1,344,092,376.90
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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.