Finding the Fourth Proportional to 12,219,873.44, 18,329,837.85 and 4,545,201.09
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Solution
The fourth proportional to 12,219,873.44, 18,329,837.85 and 4,545,201.09 is: 6,817,811.94
Step by Step Solution
- Step 1: Write the proportion equation
12,219,873.44 : 18,329,837.85 = 4,545,201.09 : x - Step 2: Convert to fraction form
12,219,873.44/18,329,837.85 = 4,545,201.09/x - Step 3: Cross multiply
12,219,873.44x = 18,329,837.85 × 4,545,201.09 - Step 4: Simplify right side
12,219,873.44x = 83,312,798,975,343.27 - Step 5: Solve for x
x = 83,312,798,975,343.27/12,219,873.44 - Step 6: Final answer
x = 6,817,811.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.