Finding the Fourth Proportional to 2,878,093,607.84, 3,971,796,561 and 1,688,682,812.96
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Solution
The fourth proportional to 2,878,093,607.84, 3,971,796,561 and 1,688,682,812.96 is: 2,330,398,348.01
Step by Step Solution
- Step 1: Write the proportion equation
2,878,093,607.84 : 3,971,796,561 = 1,688,682,812.96 : x - Step 2: Convert to fraction form
2,878,093,607.84/3,971,796,561 = 1,688,682,812.96/x - Step 3: Cross multiply
2,878,093,607.84x = 3,971,796,561 × 1,688,682,812.96 - Step 4: Simplify right side
2,878,093,607.84x = 6,707,104,589,134,333,952 - Step 5: Solve for x
x = 6,707,104,589,134,333,952/2,878,093,607.84 - Step 6: Final answer
x = 2,330,398,348.01
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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.