Finding the Fourth Proportional to 11,547,749.12, 15,935,403.84 and 6,390,628.16
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Solution
The fourth proportional to 11,547,749.12, 15,935,403.84 and 6,390,628.16 is: 8,818,795.72
Step by Step Solution
- Step 1: Write the proportion equation
11,547,749.12 : 15,935,403.84 = 6,390,628.16 : x - Step 2: Convert to fraction form
11,547,749.12/15,935,403.84 = 6,390,628.16/x - Step 3: Cross multiply
11,547,749.12x = 15,935,403.84 × 6,390,628.16 - Step 4: Simplify right side
11,547,749.12x = 101,837,240,520,876.14 - Step 5: Solve for x
x = 101,837,240,520,876.14/11,547,749.12 - Step 6: Final answer
x = 8,818,795.72
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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.