Finding the Fourth Proportional to 19,756,434.90, 27,268,115.49 and 12,023,967.54
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Solution
The fourth proportional to 19,756,434.90, 27,268,115.49 and 12,023,967.54 is: 16,595,652.87
Step by Step Solution
- Step 1: Write the proportion equation
19,756,434.90 : 27,268,115.49 = 12,023,967.54 : x - Step 2: Convert to fraction form
19,756,434.90/27,268,115.49 = 12,023,967.54/x - Step 3: Cross multiply
19,756,434.90x = 27,268,115.49 × 12,023,967.54 - Step 4: Simplify right side
19,756,434.90x = 327,870,935,528,731.12 - Step 5: Solve for x
x = 327,870,935,528,731.12/19,756,434.90 - Step 6: Final answer
x = 16,595,652.87
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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.