Finding the Fourth Proportional to 1,687,407,448.73, 2,328,621,469.31 and 1,009,224,387.95
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Solution
The fourth proportional to 1,687,407,448.73, 2,328,621,469.31 and 1,009,224,387.95 is: 1,392,729,170.96
Step by Step Solution
- Step 1: Write the proportion equation
1,687,407,448.73 : 2,328,621,469.31 = 1,009,224,387.95 : x - Step 2: Convert to fraction form
1,687,407,448.73/2,328,621,469.31 = 1,009,224,387.95/x - Step 3: Cross multiply
1,687,407,448.73x = 2,328,621,469.31 × 1,009,224,387.95 - Step 4: Simplify right side
1,687,407,448.73x = 2,350,101,577,135,534,592 - Step 5: Solve for x
x = 2,350,101,577,135,534,592/1,687,407,448.73 - Step 6: Final answer
x = 1,392,729,170.96
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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.