Finding the Fourth Proportional to 7,213,415.09, 9,954,392.18 and 3,905,682.66
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Solution
The fourth proportional to 7,213,415.09, 9,954,392.18 and 3,905,682.66 is: 5,389,776.75
Step by Step Solution
- Step 1: Write the proportion equation
7,213,415.09 : 9,954,392.18 = 3,905,682.66 : x - Step 2: Convert to fraction form
7,213,415.09/9,954,392.18 = 3,905,682.66/x - Step 3: Cross multiply
7,213,415.09x = 9,954,392.18 × 3,905,682.66 - Step 4: Simplify right side
7,213,415.09x = 38,878,696,908,737.19 - Step 5: Solve for x
x = 38,878,696,908,737.19/7,213,415.09 - Step 6: Final answer
x = 5,389,776.75
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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.