Finding the Fourth Proportional to 2,989,880,264.97, 4,096,067,429.36 and 2,878,096,428.81
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Solution
The fourth proportional to 2,989,880,264.97, 4,096,067,429.36 and 2,878,096,428.81 is: 3,942,926,136.12
Step by Step Solution
- Step 1: Write the proportion equation
2,989,880,264.97 : 4,096,067,429.36 = 2,878,096,428.81 : x - Step 2: Convert to fraction form
2,989,880,264.97/4,096,067,429.36 = 2,878,096,428.81/x - Step 3: Cross multiply
2,989,880,264.97x = 4,096,067,429.36 × 2,878,096,428.81 - Step 4: Simplify right side
2,989,880,264.97x = 11,788,877,040,613,169,152 - Step 5: Solve for x
x = 11,788,877,040,613,169,152/2,989,880,264.97 - Step 6: Final answer
x = 3,942,926,136.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.