Finding the Fourth Proportional to 4,989,603.36, 6,885,651.30 and 2,814,142.08
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Solution
The fourth proportional to 4,989,603.36, 6,885,651.30 and 2,814,142.08 is: 3,883,515.32
Step by Step Solution
- Step 1: Write the proportion equation
4,989,603.36 : 6,885,651.30 = 2,814,142.08 : x - Step 2: Convert to fraction form
4,989,603.36/6,885,651.30 = 2,814,142.08/x - Step 3: Cross multiply
4,989,603.36x = 6,885,651.30 × 2,814,142.08 - Step 4: Simplify right side
4,989,603.36x = 19,377,201,071,536.70 - Step 5: Solve for x
x = 19,377,201,071,536.70/4,989,603.36 - Step 6: Final answer
x = 3,883,515.32
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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.