Finding the Fourth Proportional to 2,758,902,721.16, 3,812,265,991.74 and 1,964,569,650.05
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Solution
The fourth proportional to 2,758,902,721.16, 3,812,265,991.74 and 1,964,569,650.05 is: 2,714,652,462.32
Step by Step Solution
- Step 1: Write the proportion equation
2,758,902,721.16 : 3,812,265,991.74 = 1,964,569,650.05 : x - Step 2: Convert to fraction form
2,758,902,721.16/3,812,265,991.74 = 1,964,569,650.05/x - Step 3: Cross multiply
2,758,902,721.16x = 3,812,265,991.74 × 1,964,569,650.05 - Step 4: Simplify right side
2,758,902,721.16x = 7,489,462,065,290,167,296 - Step 5: Solve for x
x = 7,489,462,065,290,167,296/2,758,902,721.16 - Step 6: Final answer
x = 2,714,652,462.32
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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.