Finding the Fourth Proportional to 2,129,934,199.68, 2,939,422,737.60 and 1,190,159,654.40
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Solution
The fourth proportional to 2,129,934,199.68, 2,939,422,737.60 and 1,190,159,654.40 is: 1,642,483,767.83
Step by Step Solution
- Step 1: Write the proportion equation
2,129,934,199.68 : 2,939,422,737.60 = 1,190,159,654.40 : x - Step 2: Convert to fraction form
2,129,934,199.68/2,939,422,737.60 = 1,190,159,654.40/x - Step 3: Cross multiply
2,129,934,199.68x = 2,939,422,737.60 × 1,190,159,654.40 - Step 4: Simplify right side
2,129,934,199.68x = 3,498,382,349,517,517,824 - Step 5: Solve for x
x = 3,498,382,349,517,517,824/2,129,934,199.68 - Step 6: Final answer
x = 1,642,483,767.83
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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.