Finding the Fourth Proportional to 11,506,481.17, 15,879,325.41 and 6,279,775.54
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Solution
The fourth proportional to 11,506,481.17, 15,879,325.41 and 6,279,775.54 is: 8,666,298.40
Step by Step Solution
- Step 1: Write the proportion equation
11,506,481.17 : 15,879,325.41 = 6,279,775.54 : x - Step 2: Convert to fraction form
11,506,481.17/15,879,325.41 = 6,279,775.54/x - Step 3: Cross multiply
11,506,481.17x = 15,879,325.41 × 6,279,775.54 - Step 4: Simplify right side
11,506,481.17x = 99,718,599,301,418.47 - Step 5: Solve for x
x = 99,718,599,301,418.47/11,506,481.17 - Step 6: Final answer
x = 8,666,298.40
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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.