Finding the Fourth Proportional to 13,148,484.08, 18,144,559.64 and 7,347,313.49
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Solution
The fourth proportional to 13,148,484.08, 18,144,559.64 and 7,347,313.49 is: 10,139,097.94
Step by Step Solution
- Step 1: Write the proportion equation
13,148,484.08 : 18,144,559.64 = 7,347,313.49 : x - Step 2: Convert to fraction form
13,148,484.08/18,144,559.64 = 7,347,313.49/x - Step 3: Cross multiply
13,148,484.08x = 18,144,559.64 × 7,347,313.49 - Step 4: Simplify right side
13,148,484.08x = 133,313,767,740,727.02 - Step 5: Solve for x
x = 133,313,767,740,727.02/13,148,484.08 - Step 6: Final answer
x = 10,139,097.94
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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.