Finding the Fourth Proportional to 11,289,775.78, 15,579,903.99 and 6,133,140.82
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Solution
The fourth proportional to 11,289,775.78, 15,579,903.99 and 6,133,140.82 is: 8,463,741.62
Step by Step Solution
- Step 1: Write the proportion equation
11,289,775.78 : 15,579,903.99 = 6,133,140.82 : x - Step 2: Convert to fraction form
11,289,775.78/15,579,903.99 = 6,133,140.82/x - Step 3: Cross multiply
11,289,775.78x = 15,579,903.99 × 6,133,140.82 - Step 4: Simplify right side
11,289,775.78x = 95,553,745,132,749.88 - Step 5: Solve for x
x = 95,553,745,132,749.88/11,289,775.78 - Step 6: Final answer
x = 8,463,741.62
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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.