Finding the Fourth Proportional to 1,395,749,972.88, 1,926,048,420.36 and 769,183,395.84
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Solution
The fourth proportional to 1,395,749,972.88, 1,926,048,420.36 and 769,183,395.84 is: 1,061,425,393.74
Step by Step Solution
- Step 1: Write the proportion equation
1,395,749,972.88 : 1,926,048,420.36 = 769,183,395.84 : x - Step 2: Convert to fraction form
1,395,749,972.88/1,926,048,420.36 = 769,183,395.84/x - Step 3: Cross multiply
1,395,749,972.88x = 1,926,048,420.36 × 769,183,395.84 - Step 4: Simplify right side
1,395,749,972.88x = 1,481,484,464,524,772,608 - Step 5: Solve for x
x = 1,481,484,464,524,772,608/1,395,749,972.88 - Step 6: Final answer
x = 1,061,425,393.74
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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.