Finding the Fourth Proportional to 12,163,809.67, 16,696,642.80 and 10,756,314.79
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Solution
The fourth proportional to 12,163,809.67, 16,696,642.80 and 10,756,314.79 is: 14,764,646.17
Step by Step Solution
- Step 1: Write the proportion equation
12,163,809.67 : 16,696,642.80 = 10,756,314.79 : x - Step 2: Convert to fraction form
12,163,809.67/16,696,642.80 = 10,756,314.79/x - Step 3: Cross multiply
12,163,809.67x = 16,696,642.80 × 10,756,314.79 - Step 4: Simplify right side
12,163,809.67x = 179,594,345,892,987 - Step 5: Solve for x
x = 179,594,345,892,987/12,163,809.67 - Step 6: Final answer
x = 14,764,646.17
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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.