Finding the Fourth Proportional to 7,163,297.77, 9,891,495.14 and 6,931,660.41
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Solution
The fourth proportional to 7,163,297.77, 9,891,495.14 and 6,931,660.41 is: 9,571,636.90
Step by Step Solution
- Step 1: Write the proportion equation
7,163,297.77 : 9,891,495.14 = 6,931,660.41 : x - Step 2: Convert to fraction form
7,163,297.77/9,891,495.14 = 6,931,660.41/x - Step 3: Cross multiply
7,163,297.77x = 9,891,495.14 × 6,931,660.41 - Step 4: Simplify right side
7,163,297.77x = 68,564,485,283,557.22 - Step 5: Solve for x
x = 68,564,485,283,557.22/7,163,297.77 - Step 6: Final answer
x = 9,571,636.90
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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.