Finding the Fourth Proportional to 15,704,146.13, 21,671,410.87 and 8,734,673.68
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Solution
The fourth proportional to 15,704,146.13, 21,671,410.87 and 8,734,673.68 is: 12,053,676.82
Step by Step Solution
- Step 1: Write the proportion equation
15,704,146.13 : 21,671,410.87 = 8,734,673.68 : x - Step 2: Convert to fraction form
15,704,146.13/21,671,410.87 = 8,734,673.68/x - Step 3: Cross multiply
15,704,146.13x = 21,671,410.87 × 8,734,673.68 - Step 4: Simplify right side
15,704,146.13x = 189,292,702,266,273.97 - Step 5: Solve for x
x = 189,292,702,266,273.97/15,704,146.13 - Step 6: Final answer
x = 12,053,676.82
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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.