Finding the Fourth Proportional to 12,663,245.97, 18,903,175.74 and 11,130,990.03
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Solution
The fourth proportional to 12,663,245.97, 18,903,175.74 and 11,130,990.03 is: 16,615,886.73
Step by Step Solution
- Step 1: Write the proportion equation
12,663,245.97 : 18,903,175.74 = 11,130,990.03 : x - Step 2: Convert to fraction form
12,663,245.97/18,903,175.74 = 11,130,990.03/x - Step 3: Cross multiply
12,663,245.97x = 18,903,175.74 × 11,130,990.03 - Step 4: Simplify right side
12,663,245.97x = 210,411,060,697,277.84 - Step 5: Solve for x
x = 210,411,060,697,277.84/12,663,245.97 - Step 6: Final answer
x = 16,615,886.73
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.