Finding the Fourth Proportional to 26,129,378.11, 36,060,558.87 and 15,675,785.95
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Solution
The fourth proportional to 26,129,378.11, 36,060,558.87 and 15,675,785.95 is: 21,633,794.72
Step by Step Solution
- Step 1: Write the proportion equation
26,129,378.11 : 36,060,558.87 = 15,675,785.95 : x - Step 2: Convert to fraction form
26,129,378.11/36,060,558.87 = 15,675,785.95/x - Step 3: Cross multiply
26,129,378.11x = 36,060,558.87 × 15,675,785.95 - Step 4: Simplify right side
26,129,378.11x = 565,277,602,083,493.75 - Step 5: Solve for x
x = 565,277,602,083,493.75/26,129,378.11 - Step 6: Final answer
x = 21,633,794.72
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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.